bird vs girl girl vs bird

bird and girl both are nouns.

bird is a verb but girl is not a verb.

As nouns, girl is a hypernym of bird; that is, girl is a word with a broader meaning than bird and bird is a type of girl with the definitions:
  • informal terms for a (young) woman
Other hypernyms of bird include miss, missy, fille, young lady, young woman.
bird (noun) girl (noun)
warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings a young female
the flesh of a bird or fowl (wild or domestic) used as food a youthful female person
informal terms for a (young) woman a female human offspring
a cry or noise made to express displeasure or contempt a girl or young woman with whom a man is romantically involved
badminton equipment consisting of a ball of cork or rubber with a crown of feathers a friendly informal reference to a grown woman
bird (verb) girl (verb)
watch and study birds in their natural habitat