trawl

nouns

a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)
setline, spiller, trawl, trawl line, trotline
a conical fishnet dragged through the water at great depths
dragnet, trawl, trawl net

verbs

fish with trawlers
trawl
is a type of (narrower)
catch or try to catch fish or shellfish
"I like to go fishing on weekends"
fish