feed bunk vs trough

feed bunk and trough both are nouns.

Word	Noun	Adjective	Verb	Adverb
feed bunk	Yes	No	No	No
trough	Yes	No	No	No

As nouns, trough is a hypernym of feed bunk; that is, trough is a word with a broader meaning than feed bunk:

feed bunk: a long trough for feeding cattle
trough: a container (usually in a barn or stable) from which cattle or horses feed

Other hypernyms of feed bunk include manger.

feed bunk (noun)	trough (noun)
a long trough for feeding cattle	a channel along the eaves or on the roof; collects and carries away rainwater
	a container (usually in a barn or stable) from which cattle or horses feed
	a long narrow shallow receptacle
	a narrow depression (as in the earth or between ocean waves or in the ocean bed)
	a treasury for government funds
	a concave shape with an open top