Somebody vs Someone

When to use each in English, with meaning, register, and examples.

Somebody

Top 1,000 (very common)A1pronoun

Someone

Top 1,000 (very common)A1pronoun
 SomebodySomeone
Pronunciation🇬🇧 /["/ˈsʌmbədi/"]/🇺🇸 /["/ˈsʌmbədi/"]/🇬🇧 /["/ˈsʌmwʌn/"]/🇺🇸 /["/ˈsʌmwʌn/"]/
Meaninga person, not known or specifica person that is not named
ExampleSomebody should have told me.There's someone at the door.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA1A1
Part of speechpronounpronoun
Collocationssomebody told me, somebody's name, somebody elsesomeone special, someone new, someone important, someone else
Antonymsnobody, no onenobody, no one, none
Common mistakesConfused with 'somebody's' (possessive form), Using in place of 'someone' without context, Omitting it in sentences where clarity is neededConfusing with 'anyone' which is more general., Using 'someone' in plural form (e.g., 'somones')., Incorrectly using 'someone' when a specific name should be used.
Usage notesUsed in both spoken and written English. It's common in everyday conversation when the speaker does not know who they are referring to. Avoid in very formal contexts where specificity is required.Use 'someone' when referring to an unspecified person. It's neutral, suitable for both spoken and written contexts. Avoid in very formal writing or when specificity is needed.

Frequently asked questions: Somebody vs Someone

What's the difference between Somebody and Someone?

Somebody: a person, not known or specific Someone: a person that is not named

Are Somebody and Someone the same CEFR level?

Somebody: A1, Someone: A1 on the CEFR scale.

Can I use Somebody and Someone interchangeably?

Not always. Somebody and Someone are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.