fishnet vs landing net

fishnet and landing net both are nouns.

Word	Noun	Adjective	Verb	Adverb
fishnet	Yes	No	No	No
landing net	Yes	No	No	No

As nouns, landing net is a hyponym of fishnet; that is, landing net is a word with a more specific, narrower meaning than fishnet:

fishnet: a net that will enclose fish when it is pulled in
landing net: a bag-shaped fishnet on a long handle to take a captured fish from the water

Other hyponyms of fishnet include drift net, gill net, seine, trammel, trammel net, dragnet, trawl, trawl net.

fishnet (noun)	landing net (noun)
a net that will enclose fish when it is pulled in	a bag-shaped fishnet on a long handle to take a captured fish from the water