Definitions of bird:

noun: warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
noun: the flesh of a bird or fowl (wild or domestic) used as food
noun: badminton equipment consisting of a ball of cork or rubber with a crown of feathers
noun: informal terms for a (young) woman
noun: a cry or noise made to express displeasure or contempt
verb: watch and study birds in their natural habitat
name: A surname (common: 1 in 8333 families; popularity rank in the U.S.: #972)