boatbill vs broadbill

boatbill and broadbill both are nouns.

Word	Noun	Adjective	Verb	Adverb
boatbill	Yes	No	No	No
broadbill	Yes	No	No	No

As nouns, boatbill and broadbill are synonyms defined as:

Other synonyms of boatbill include boat-billed heron, Cochlearius cochlearius.

boatbill (noun)	broadbill (noun)
tropical American heron related to night herons	small birds of the Old World tropics having bright plumage and short wide bills
	freshwater duck of the Northern Hemisphere having a broad flat bill
	diving ducks of North America having a bluish-grey bill
	tropical American heron related to night herons