pronoun
- any person at all; anybody: Did anyone see the accident?
pronoun
- any person; anybody
- (used with a negative or a question) a person of any importanceis he anyone in this town?
- (often preceded by just) any person at random; no matter who
Old English, two words, from any + one. Old English also used ænigmon in this sense. One-word form from 1844.