bilges vs bilge

bilges and bilge both are nouns.

Word	Noun	Adjective	Verb	Adverb
bilges	Yes	No	No	No
bilge	Yes	No	Yes	No

As nouns, bilge is a hypernym of bilges; that is, bilge is a word with a broader meaning than bilges:

bilges: in a vessel with two hulls, an enclosed area between the frames at each side
bilge: where the sides of the vessel curve in to form the bottom

bilges (noun)	bilge (noun)
in a vessel with two hulls, an enclosed area between the frames at each side	where the sides of the vessel curve in to form the bottom
	water accumulated in the bilge of a ship

bilges (verb)	bilge (verb)
	take in water at the bilge
	cause to leak