thrasher vs thrash

thrasher and thrash both are nouns.

Word	Noun	Adjective	Verb	Adverb
thrasher	Yes	No	No	No
thrash	Yes	No	Yes	No

thrasher (noun)	thrash (noun)
thrush-like American songbird able to mimic other birdsongs	a swimming kick used while treading water
large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed
a farm machine for separating seeds or grain from the husks and straw

thrasher (verb)	thrash (verb)
	give a thrashing to; beat hard
	beat the seeds out of a grain
	beat thoroughly and conclusively in a competition or fight
	dance the slam dance
	move or stir about violently
	beat so fast that (the heart's) output starts dropping until (it) does not manage to pump out blood at all
	move data into and out of core rather than performing useful computation