trammel net vs fishing net

trammel net and fishing net both are nouns.

Word	Noun	Adjective	Verb	Adverb
trammel net	Yes	No	No	No
fishing net	Yes	No	No	No

As nouns, fishing net is a hypernym of trammel net; that is, fishing net is a word with a broader meaning than trammel net:

trammel net: a fishing net with three layers; the outer two are coarse mesh and the loose inner layer is fine mesh
fishing net: a net that will enclose fish when it is pulled in

Other hypernyms of trammel net include fishnet.

trammel net (noun)	fishing net (noun)
a fishing net with three layers; the outer two are coarse mesh and the loose inner layer is fine mesh	a net that will enclose fish when it is pulled in