"dredge" in the noun sense

1. dredge

a power shovel to remove material from a channel or riverbed

"dredge" in the verb sense

1. dredge

cover before cooking

"dredge the chicken in flour before frying it"

2. dredge, drag

search (as the bottom of a body of water) for something valuable or lost

3. dredge

remove with a power shovel, usually from a bottom of a body of water

Source: WordNet® (An amazing lexical database of English)

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