noun

1. any of a class (Aves) of warmblooded, two-legged, egg-laying vertebrates with feathers and wings
2. a small game bird
3. a clay pigeon in trapshooting
4. a shuttlecock
5. ☆ Informal a person, esp. a mildly eccentric one
6. Slang a sound of disapproval made by vibrating the lips
7. Slang a rocket or guided missile
8. Brit., Slang a young woman

Etymology: ME bird, brid < OE bridd, bird, orig., young bird

intransitive verb

1. to shoot or catch birds
2. to engage in bird-watching