If you have ever wondered whether you should write something or some thing, you are not alone.
The two forms contain exactly the same words, but the space between them can change how the phrase functions in a sentence.
In modern English, something is overwhelmingly the normal choice when you mean an unspecified object, idea, event, action, or situation.
For example, I heard something outside means that you heard an unidentified thing or sound.
But some thing is not automatically wrong. It can be used when some and thing are functioning as separate words and the speaker or writer wants to emphasize that particular thing as one item among alternatives.
That distinction is small, but it matters. Writing some thing when you mean the ordinary indefinite pronoun something can make your sentence look unusual or awkward.
On the other hand, automatically changing every occurrence of some thing to something can remove an intended contrast or emphasis.
So, is it something or some thing?
The short answer is: use something for the ordinary indefinite pronoun. Use some thing only when some and thing genuinely need to remain separate.
Quick Answer
Something is the standard form when you mean “an unspecified thing.”
- Correct: I need something to eat.
- Correct: Something is wrong.
- Correct: She told me something interesting.
Some thing is possible when some directly modifies the noun thing, usually to emphasize or contrast one particular thing.
- Some thing is blocking the door, but I cannot tell what it is.
In ordinary modern English, something is by far the more natural choice for the indefinite-pronoun meaning.
Something vs Some Thing: Comparison Table
| Feature | Something | Some thing |
|---|---|---|
| Basic function | Indefinite pronoun | Determiner + noun |
| Main meaning | An unspecified thing | Some particular thing or one thing among possibilities |
| Normal spelling | One word | Two words |
| Pronunciation | Usually /ˈsʌm.θɪŋ/ | Similar, but the separate structure can receive more emphasis |
| Commonness | Very common | Uncommon in ordinary writing |
| Grammar | Indefinite pronoun | Some + noun thing |
| Example | I saw something. | Some thing caused the problem. |
| Refers to | An unidentified thing, idea, event, etc. | A thing treated as a separate noun |
| Everyday conversation | Very common | Rare |
| Academic writing | Common | Limited/context-dependent |
| Business writing | Common | Usually unnecessary |
| Formal writing | Standard | Used only when the separate-word meaning is intended |
| Usually interchangeable? | No | No |
| Main risk | Very few | Can look like a spacing error if no contrast is intended |
| US vs UK | Standard in both | Standard grammatical construction when context requires it |
| Best default choice | Something | Use only when separation has a purpose |
Quick rule: If you can replace the word with “an unspecified thing,” write something.
What Does “Something” Mean?

Something is an indefinite pronoun. It refers to a thing, situation, quality, event, action, or idea without identifying exactly what it is.
Consider:
There is something under the bed.
The speaker knows that there is an unidentified thing under the bed, but does not say exactly what it is.
Other examples include:
- I need something.
- Something happened yesterday.
- She wants something different.
- Did you hear something?
- There is something strange about this place.
The word something can refer to physical objects, abstract ideas, events, situations, or qualities.
Something as an Indefinite Pronoun
This is the most important grammatical point.
Words such as someone, somebody, something, and somewhere belong to a group commonly called indefinite pronouns.
They refer to people, things, or places without identifying them precisely.
Compare:
- someone = an unspecified person
- something = an unspecified thing
- somewhere = an unspecified place
- somebody = an unspecified person
For example:
Someone left something somewhere.
Here, all three indefinite forms perform their own grammatical jobs.
Something Usually Takes a Singular Verb
Because something is grammatically singular, it normally takes a singular verb.
- Correct: Something is wrong.
- Correct: Something has changed.
- Correct: Something was making a strange noise.
Not:
- Incorrect: Something are wrong.
- Incorrect: Something have changed.
Even though something may refer to an unknown object, its grammatical number is singular.
Something Can Refer to More Than a Physical Object
A common misunderstanding is that something must refer to an object.
It does not.
It can refer to:
An object
I found something under the sofa.
An event
Something happened during the meeting.
A problem
There is something wrong with the printer.
An idea
I have something in mind.
An action
We need to do something.
A quality
There is something special about this restaurant.
This flexibility is one reason something is so common in everyday English.
When Should You Use “Something”?

Use something when the exact identity of a thing is unknown, unstated, unimportant, or deliberately left vague.
1. When You Do Not Know What the Thing Is
I heard something outside.
You heard a sound, but you do not know what caused it.
2. When the Exact Thing Is Not Important
Can you give me something to drink?
The speaker does not need to identify a particular drink.
3. When You Are Being Deliberately Vague
There is something I need to tell you.
The speaker knows what the matter is but does not identify it yet.
4. When Referring to an Unknown Event
Something happened at school today.
The speaker has not specified what happened.
5. When Referring to an Abstract Quality
There is something unusual about his explanation.
The speaker is referring to an unspecified quality or characteristic.
6. In the Common Pattern “Something + Adjective”
English frequently uses something before an adjective in structures such as:
- something interesting
- something useful
- something unusual
- something important
- something expensive
- something different
Examples:
I want something simple.
She said something interesting.
We need something more practical.
In these cases, something is the natural form.
What Does “Some Thing” Mean?
Some thing consists of two separate words:
- some — a determiner
- thing — a noun
The construction is grammatically possible because some can modify nouns.
For example:
Some thing is causing the problem.
Here, thing is still functioning as an ordinary noun. Some modifies it.
However, this construction is much less common than something when the intended meaning is simply “an unspecified thing.”
That is why learners sometimes become confused: the separate construction is grammatically possible, but it does not mean that it should replace something in ordinary sentences.
When Should You Use “Some Thing”?
Use some thing only when you genuinely mean some particular thing, with thing functioning as a separate noun.
The separate spelling often becomes useful when the writer wants to distinguish thing from another possible category, or when some carries special emphasis.
For example:
Some thing must be responsible for the damage.
This construction can emphasize the idea that some thing, rather than a person or some other cause, is responsible.
However, in many contexts, modern writers would naturally choose:
Something must be responsible for the damage.
The second version is shorter, smoother, and more idiomatic.
A Useful Test
Ask yourself:
Am I using “something” as a single word meaning “an unspecified thing”?
If yes, write:
something
If you are deliberately saying some + thing, where thing is being treated as a separate noun, then:
some thing
may be appropriate.
Why Do People Confuse “Something” and “Some Thing”?
The confusion is understandable because something historically developed from the combination of some and thing.
The modern word was not always written exactly as it is today. Historical forms included separated and hyphenated versions before something became established as a single word.
So there is a real historical relationship between the two forms.
But modern spelling does not work simply by preserving the original structure of a word.
English has many compounds that have changed over time from separate words to hyphenated forms and eventually to closed compounds.
Examples include:
- some time → sometime in certain meanings
- some where → somewhere
- some what → somewhat
- some one → someone
This historical development helps explain why something is now treated as one lexical unit in its ordinary meaning.
Something vs Some Thing: The Main Difference
The easiest way to understand the difference is to focus on grammar and meaning rather than spacing alone.
Something is a single indefinite pronoun
I need something.
Here, something stands alone as a pronoun.
It means an unspecified thing.
Some thing contains a determiner and noun
Some thing caused the problem.
Here:
- some modifies thing
- thing remains a separate noun
The difference can therefore be represented like this:
something
one grammatical unit → indefinite pronoun
some thing
two grammatical units → determiner + noun
That is the central distinction.
Grammar of “Something”
Part of Speech
Something is primarily an indefinite pronoun.
It can occupy positions where a noun phrase or pronoun is required.
Something happened.
I saw something.
She needs something.
Subject Position
Something smells strange.
Here, something is the subject.
Object Position
I heard something.
Here, something is the object of heard.
After a Preposition
We were talking about something.
She is worried about something.
With Adjectives
A particularly common pattern is:
something + adjective
Examples:
- something useful
- something strange
- something beautiful
- something important
Notice that the adjective comes after something.
We normally say:
something interesting
not:
interesting something
when using the ordinary indefinite-pronoun construction.
With “Else”
Another extremely common structure is:
something else
Examples:
Do you need something else?
Let’s talk about something else.
I wanted to ask you something else.
Here else follows something.
Grammar of “Some Thing”
With some thing, the word thing remains an ordinary noun.
That means it behaves differently from the pronoun something.
Compare:
Something is missing.
versus:
Some thing is missing.
The first sentence presents something as an indefinite pronoun.
The second treats thing as a noun modified by some.
In normal modern prose, the first sentence will usually be the intended choice unless the writer has a specific reason to separate the words.
Is “Some Thing” Wrong?
Not always.
This is an important distinction.
It would be inaccurate to say that some thing is universally ungrammatical.
The two-word construction can be grammatically meaningful when some modifies the noun thing independently.
But it is usually not the normal spelling when you simply mean the indefinite pronoun something.
For example:
I need something to eat.
This is the natural sentence.
Writing:
I need some thing to eat.
would usually look awkward because the writer almost certainly means the indefinite pronoun something.
So the practical rule is:
“Some thing” is possible, but “something” is the normal choice for the ordinary indefinite meaning.
Something vs Some Thing in American and British English
There is no major US-versus-UK spelling difference here.
Something is standard in both American English and British English.
Examples:
Something is wrong.
I need something.
She told me something important.
The same basic spelling and grammatical distinction applies in both varieties.
The difference is therefore not comparable to pairs such as:
- color / colour
- center / centre
- organize / organise
Those involve recognized regional spelling differences.
Something vs some thing is primarily a question of word formation, grammar, and intended meaning, not American versus British spelling.
Pronunciation: Something vs Some Thing
The ordinary word something is pronounced approximately:
/ˈsʌm.θɪŋ/
The pronunciation is essentially built from the sounds associated with some and thing, but as a single lexical item it is normally spoken naturally as one word.
In everyday speech, connected speech may make the boundaries even less noticeable.
That can create another source of confusion: when people hear something, they may mentally analyze it as some thing.
But pronunciation does not determine spelling.
English contains many words whose historical parts are no longer treated as separate grammatical units.
Pronunciation Tip
Do not decide whether to write something or some thing simply by listening for a pause.
Use the intended grammar and meaning instead.
20+ Real-Life Examples
The following examples show how the two forms behave in different contexts.
Everyday Conversation
1.
I think I heard something downstairs.
Use something because the speaker refers to an unidentified thing or sound.
2.
Would you like something to drink?
The speaker is offering an unspecified drink.
3.
Something smells amazing.
The exact source of the smell is unknown.
4.
I need something from the supermarket.
The speaker does not specify the item.
Text Messages
5.
Can you bring me something sweet?
6.
Something came up. I’ll call you later.
7.
Did you want to tell me something?
These are all ordinary uses of the indefinite pronoun.
School and Education
8.
The teacher asked us to write something about climate change.
9.
I learned something interesting in today’s lesson.
10.
There is something wrong with my answer.
Business
11.
We need something more practical for the new website.
12.
The customer mentioned something important during the meeting.
13.
I noticed something unusual in the sales report.
Email Writing
14.
I wanted to ask you something about the project.
15.
Please let me know if you need something else.
Professional Writing
16.
The investigation revealed something unexpected.
17.
There is something unusual about the reported figures.
Academic Writing
18.
The study suggests that something more complex may be occurring.
19.
Researchers observed something similar in a later experiment.
Social Media
20.
Something exciting is coming soon!
21.
I finally found something worth sharing.
A Genuine “Some Thing” Construction
22.
Some thing, rather than some person, caused the reaction.
Here the writer deliberately contrasts thing with person. The separation helps make the structure explicit.
Another Contrastive Example
23.
It was not some abstract idea; it was some thing you could physically hold.
The context intentionally treats thing as a noun rather than using the ordinary indefinite pronoun.
Common Mistakes
Mistake 1: Writing “some thing” for the ordinary pronoun
Wrong for the intended meaning:
I want some thing to eat.
Better:
I want something to eat.
Why?
Because the speaker means an unspecified thing to eat, not a specially emphasized “thing.”
Mistake 2: Thinking “something” is always two words
A learner may reason:
some + thing = some thing
That logic makes sense historically, but modern English spelling does not always work by adding the current meanings of individual components.
Something is now an established one-word indefinite pronoun.
Mistake 3: Treating “some thing” as a spelling variant
Some thing is not simply an alternative spelling of something.
The space can signal a different grammatical structure.
Therefore:
something ≠ merely another spelling of some thing
Mistake 4: Changing every “some thing” automatically
The opposite mistake is also possible.
If a writer intentionally contrasts some with another determiner or emphasizes thing as a noun, automatically changing it to something can change the intended structure.
Always examine the sentence before editing it.
Mistake 5: Confusing “something” with “anything”
These words are related but are not always interchangeable.
Compare:
Did you buy something?
and:
Did you buy anything?
The choice depends on the type of question and the speaker’s expectation.
In many ordinary negative sentences and open questions, anything is preferred:
I didn’t buy anything.
Did you see anything?
But something can occur naturally in questions when the speaker expects or suggests a particular answer:
Would you like something to drink?
Did you want to tell me something?
This is a broader grammar issue, but it is useful because learners who are already confused about something often also struggle with something vs anything.
“Something” in Common Expressions
The word something appears in many fixed expressions and common patterns.
Something else
Means another thing or something additional.
Let’s try something else.
Something like
Used when describing something approximately.
It costs something like $50.
Something about
Used to describe an unclear quality or feature.
There is something about this place that I like.
Something to do with
Means connected with.
The problem has something to do with the software.
Or something
Used when the speaker is being approximate or uncertain.
We’ll meet at five or something.
Something of a
Used before a noun to suggest that someone or something has a particular quality to a noticeable degree.
She is something of an expert.
These expressions all use the standard one-word form something.
Can “Some Thing” Be Used for Emphasis?
Yes, in the right context.
This is where the distinction becomes especially useful.
Suppose someone asks:
Was it a person who caused the damage?
You might answer:
No. Some thing caused it.
Here, thing is being deliberately contrasted with person.
However, many writers would still choose a different construction for clarity:
No. Some kind of thing caused it.
or:
No. Something caused it.
The two-word form is therefore relatively marked. It should have a reason to exist.
Editing Principle
If you are proofreading professional or academic writing and see some thing, ask:
“Does the writer really mean some + thing, or did they simply intend something?”
If the latter is true, change it to something.
Is “Something” More Formal Than “Some Thing”?
Neither form is inherently a formal-versus-informal alternative.
Something is completely normal in:
- everyday conversation
- emails
- business communication
- journalism
- academic writing
- professional documents
- formal prose
The issue is not formality.
The issue is grammatical function and meaning.
In fact, using some thing when something is intended can make otherwise formal writing look less polished.
Something vs Some Thing in Academic Writing
Academic writers frequently use something when referring to an unspecified factor, characteristic, or phenomenon.
Examples:
Something similar occurred in the second experiment.
The results suggest that something more complicated is taking place.
The researchers identified something unexpected in the data.
However, academic writing often benefits from precision. If you know what the thing is, naming it is usually better than using a vague pronoun.
Instead of:
Something affected the results.
A more precise sentence might be:
The temperature affected the results.
This leads to a useful writing principle:
Use “something” when the identity is genuinely unknown, irrelevant, or intentionally unspecified. Do not use it merely because a more precise noun is inconvenient.
Something vs Some Thing in Professional Writing
Professional writing follows the same basic rule.
Use:
We need something more reliable.
rather than:
We need some thing more reliable.
Unless the context specifically requires some + thing, the one-word form is cleaner.
In workplace communication, clarity matters more than preserving an artificial distinction.
Compare:
Please send me something that explains the new procedure.
with:
Please send me some thing that explains the new procedure.
The first sentence sounds natural. The second may make the reader stop and wonder whether the spacing was accidental.
Hyphenation: Should It Be “Some-Thing”?
Normally, no.
Something is conventionally written as one word in modern English.
You should not normally write:
some-thing
in ordinary modern prose.
Historical English sometimes used hyphenated forms, but modern standard English has settled on something as the normal spelling.
The hyphen is therefore not an alternative modern spelling you should use simply because the word contains some and thing.
Capitalization
There is no special capitalization rule for something.
Use lowercase when it appears in the middle of a sentence:
I need something.
Capitalize it only when normal capitalization requires it, such as at the beginning of a sentence:
Something happened.
The same general rule applies to some thing when that construction is genuinely being used.
Plural Form
Something does not normally take a plural -s.
Do not write:
somethings
when you mean several unspecified things.
Instead, use:
some things
or:
several things
Compare:
I need something.
with:
I need some things.
The first means one unspecified thing or an unspecified item.
The second refers to multiple things.
This is an important distinction:
something → one indefinite pronoun
some things → determiner + plural noun
“Something” vs “Some Things”
These are sometimes confused because they look similar.
Something
I found something.
One unspecified thing.
Some things
I found some things.
Several things.
Notice that some things has a space because things is a plural noun being modified by some.
You cannot simply write somethings when you mean the normal plural construction.
“Something” vs “Some Thing” vs “Some Things”
| Form | Structure | Typical meaning |
|---|---|---|
| something | Indefinite pronoun | An unspecified thing |
| some thing | Determiner + singular noun | Some particular thing, usually with emphasis or contrast |
| some things | Determiner + plural noun | An unspecified number of things |
| somethings | Rare/nonstandard for ordinary plural use | Usually avoid |
Examples:
Something is wrong.
Some thing is causing the problem.
Some things are difficult to explain.
This three-way comparison makes the spelling rule much easier to remember.
Memory Tricks
Memory Trick 1: “Unknown thing” = One Word
If you mean:
an unknown thing
use:
something
Think:
Unknown thing → something
Memory Trick 2: Ask “Is Thing Still a Noun?”
If thing is functioning as an independent noun modified by some, two words may be appropriate.
some + thing
If the entire expression means “an unspecified thing,” use:
something
Memory Trick 3: Compare It With “Someone”
You would normally write:
someone
not:
some one
when you mean an unspecified person.
Likewise:
something
not:
some thing
when you mean an unspecified thing.
The same pattern appears in:
- someone
- somebody
- something
- somewhere
Memory Trick 4: Use the “One Thing” Test
Replace the expression with an unspecified thing.
If the sentence still makes sense, something is probably the correct choice.
I need something.
→ I need an unspecified thing.
Works.
Something happened.
→ An unspecified thing happened.
Works.
Quick Grammar Checklist
Before choosing between something and some thing, ask:
- Do I mean an unspecified thing?
→ Use something. - Is “thing” functioning as a separate noun?
→ Some thing may be appropriate. - Am I writing ordinary modern English?
→ Something will usually be the natural choice. - Am I deliberately contrasting “thing” with another category?
→ Some thing may work. - Would the reader think the space was a typo?
→ Consider using something or rewriting the sentence. - Do I mean several unspecified objects?
→ Use some things, not somethings.
Frequently Asked Questions
Is “something” one word or two?
Something is one word in standard modern English when it functions as the indefinite pronoun meaning an unspecified thing.
I saw something.
Is “some thing” grammatically correct?
It can be grammatically correct when some modifies thing as a separate noun. However, it is much less common than something and should not normally be used as an alternative spelling of the indefinite pronoun.
Which is correct: “something” or “some thing”?
For the ordinary meaning “an unspecified thing,” use something.
I need something.
Use some thing only when the separate grammatical roles of some and thing are intentional.
Is “some thing” a spelling mistake?
Not automatically.
The phrase can be grammatical in a context where some and thing are separate words. But if the writer simply means the common indefinite pronoun, some thing is usually an incorrect or awkward spelling choice.
Is “something” a pronoun?
Yes. Something is an indefinite pronoun.
It can function as the subject or object of a sentence:
Something happened.
I heard something.
Does “something” take a singular verb?
Yes.
Something is wrong.
Something has changed.
Because something is grammatically singular, it normally takes a singular verb.
Is “something” the same in American and British English?
Yes. Something is standard in both American and British English. The difference between something and some thing is not primarily a US-versus-UK spelling issue.
Can I write “some-thing”?
Normally, no. Some-thing is not the standard modern spelling of something.
Use something in ordinary modern English.
What is the difference between “something” and “some things”?
Something is an indefinite pronoun referring to an unspecified thing.
Some things contains the determiner some and the plural noun things, referring to multiple things.
Something is missing.
Some things are missing.
Why does “something” have no space?
Because modern English treats something as an established compound word and indefinite pronoun rather than as the ordinary combination of the determiner some and the noun thing.
Historically, the form developed from older combinations involving some and thing, but modern standard spelling uses the closed form something.
Final Verdict
When deciding between something vs some thing, the answer depends on what you mean.
For the normal meaning “an unspecified thing,” use something.
I need something.
Something is wrong.
She told me something interesting.
Did you hear something?
Some thing is possible when some and thing are deliberately functioning as separate words, usually because the writer wants to emphasize or contrast the noun thing.
Some thing, rather than some person, caused the problem.
That construction is much less common, so it should not be treated as the normal alternative to something.
The Best Rule to Remember
If you mean “an unspecified thing,” write something.
Use some thing only when you have a genuine grammatical or stylistic reason to keep some and thing separate.
In one glance
- Something = the normal indefinite pronoun.
- Some thing = some + thing as separate words.
- Something is standard in both US and UK English.
- Something normally takes a singular verb.
- Some thing is uncommon in ordinary modern prose.
- Some things is the normal plural construction.
- Some-thing is not the standard modern spelling.
So, for almost every ordinary sentence where you mean “an unspecified thing,” choose something.

Evan Bennett is a language enthusiast who writes simple, clear guides about word meanings, slang, phrases, and everyday expressions.
He helps readers understand modern language quickly with easy explanations and useful examples.