A shortened informal form of 'biography,' often used in writing or publishing to refer to a brief life story or background information about a person.
From biography (Greek bios 'life' + graphia 'writing'). This is a modern informal abbreviation created by English speakers for convenience in casual writing.
Biog is the lazy-speaker's version of biography—like how people say 'bio' for biology; it shows how English constantly creates shortcuts, and dictionaries eventually have to accept them!
Complete word intelligence in one call. Free tier — 50 lookups/day.