dredger vs dredge

dredger and dredge both are nouns.

Word	Noun	Adjective	Verb	Adverb
dredger	Yes	No	No	No
dredge	Yes	No	Yes	No

dredger (noun)	dredge (noun)
a barge (or a vessel resembling a barge) that is used for dredging	a power shovel to remove material from a channel or riverbed

dredger (verb)	dredge (verb)
	remove with a power shovel, usually from a bottom of a body of water
	search (as the bottom of a body of water) for something valuable or lost
	cover before cooking