bird vs bill

bird and bill both are nouns.

Word	Noun	Adjective	Verb	Adverb
bird	Yes	No	Yes	No
bill	Yes	No	Yes	No

bird (noun)	bill (noun)
warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings	the entertainment offered at a public presentation
badminton equipment consisting of a ball of cork or rubber with a crown of feathers	horny projecting mouth of a bird
a cry or noise made to express displeasure or contempt	a brim that projects to the front to shade the eyes
the flesh of a bird or fowl (wild or domestic) used as food	a cutting tool with a sharp edge
informal terms for a (young) woman	a sign posted in a public place as an advertisement
	an itemized statement of money owed for goods shipped or services rendered
	an advertisement (usually printed on a page or in a leaflet) intended for wide distribution
	a statute in draft before it becomes law
	a list of particulars (as a playbill or bill of fare)
	a piece of paper money (especially one issued by a central bank)

bird (verb)	bill (verb)
watch and study birds in their natural habitat	advertise especially by posters or placards
	publicize or announce by placards
	demand payment