dredge vs flour

dredge and flour both are nouns.

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

As verbs, flour is a hyponym of dredge; that is, flour is a word with a more specific, narrower meaning than dredge:

dredge (noun)	flour (noun)
a power shovel to remove material from a channel or riverbed	fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain

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