Somebody is an indefinite pronoun used to refer to an unspecified person. It often indicates a singular, generic individual and is commonly used in both spoken and written English when the identity of the person is unknown or irrelevant.
As a pronoun, somebody is used most often in affirmative sentences, while anybody is used in sentences with negative words and in questions: There's somebody at the door.
Define somebody. somebody synonyms, somebody pronunciation, somebody translation, English dictionary definition of somebody. pron. An unspecified or unknown person; someone.