- a stupid person; dunce.
- a gannet of the genus Sula, having a bright bill, bright feet, or both: some are endangered.
- a female breast.
- an ignorant or foolish person
- the losing player in a game
- any of several tropical marine birds of the genus Sula : family Sulidae, order Pelecaniformes (pelicans, cormorants, etc). They have a straight stout bill and the plumage is white with darker markings
