名詞 thrasher:

1. a farm machine for separating seeds or grain from the husks and straw
   同義詞：thresher, threshing machine
2. thrush-like American songbird able to mimic other birdsongs
   同義詞：mocking thrush
3. large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed
   同義詞：thresher, thresher shark, fox shark, Alopius vulpinus