noun
a large net or a number of nets and lines used by a fishing boat
verb
to fish with a trawl net or to search thoroughly through (something)
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The fishing boat used a trawl to catch a large amount of fish.
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The fishermen trawled the ocean for hours to bring in a good catch.
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Let's trawl through the thrift store for some cool vintage finds.
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The detective had to trawl through hours of surveillance footage to find the suspect.