What does "only" mean?

1. (exclusively) used to say that no one or nothing else is involved. 2. (no more than) used to show that a number or amount is small or not enough. 3. (the single one) used to describe the one person or thing of a particular type. 4. (without siblings) used to describe a child who has no brothers or sisters. 5. (except that) used to add a comment that explains why you cannot do something.

How do you use "only"?

Usually placed before the verb or the specific phrase it limits. Always placed before the noun it describes.

Is it correct to say "I only have seen him once."?

No — say "I have only seen him once.". In careful writing, place 'only' as close as possible to the word it modifies to avoid confusion.

only

adv. · adj. · conj.

US //ˈoʊnɫi// UK //ˈəʊnli// on·ly

1 exclusively (adv.)
A1 Beginner

used to say that no one or nothing else is involved.

used to indicate that the following statement applies exclusively to the person, thing, or group mentioned.

Example

This parking space is only for people who work in the building.

Example

The scholarship is only available to students who have maintained a perfect grade point average throughout their undergraduate studies.

Usage

Usually placed before the verb or the specific phrase it limits.
- exclusively
- solely
- also
- including
Pitfall

I only have seen him once.

I have only seen him once.

In careful writing, place 'only' as close as possible to the word it modifies to avoid confusion.
2 no more than (adv.)
A1 Beginner

used to show that a number or amount is small or not enough.

used to emphasize that a quantity, distance, or time is surprisingly small or limited.

Example

The journey to the city centre takes only ten minutes by train.

Example

The startup began with only a few thousand dollars in capital, yet it managed to disrupt the entire local logistics industry within two years.
- just
- merely
- at least

Show 3 more sensesShow fewer

3 the single one (adj.)
A1 Beginner

used to describe the one person or thing of a particular type.

functioning as a determiner to indicate that there is no other of the same kind in a specific context.

Example

She was the only person in the room who knew the secret.

Example

The only surviving manuscript of the poem is currently held in a private collection in Switzerland.

Usage

Always placed before the noun it describes.
- multiple
- numerous
4 without siblings (adj.)
A2 Elementary

used to describe a child who has no brothers or sisters.

denoting a child who is the sole offspring of their parents.

Example

Being an only child meant he spent a lot of time playing by himself.

Example

Research suggests that only children often develop strong verbal skills early due to their frequent interactions with adults.
- lone
5 except that (conj.)
B1 Intermediate Informal

used to add a comment that explains why you cannot do something.

used informally to introduce a clause that provides a reason or a contrasting fact that limits the previous statement.

Example

I would go to the party with you, only I have too much work to do.

Example

The house would be perfect for our needs, only the commute to the city is far too long for a daily trip.

Teacher's tip

In formal writing, 'except' or 'but' is usually preferred over this use of 'only'.
- except
- but

Origin

From Middle English oonly, only, from Old English ānlīċ, ǣnlīċ (“only; singular; solitary”), from Proto-Germanic *ainalīkaz. Cognate with obsolete Dutch eenlijk, German ähnlich (“similar”), Old Norse álíkr, Swedish enlig (“unified”). By surface analysis, on(e) + -ly. * Regarding the different phonological development of only and one, see the note in one.