Nouns

(n)thresher, thrasher, threshing machinea farm machine for separating seeds or grain from the husks and straw
(n)thrasher, mocking thrushthrush-like American songbird able to mimic other birdsongs
(n)thresher, thrasher, thresher shark, fox shark, Alopius vulpinuslarge pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed