hairnet vs meshwork

hairnet and meshwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
hairnet	Yes	No	No	No
meshwork	Yes	No	No	No

As nouns, meshwork is a hypernym of hairnet; that is, meshwork is a word with a broader meaning than hairnet:

hairnet: a small net that some women wear over their hair to keep it in place
meshwork: an open fabric of string or rope or wire woven together at regular intervals

Other hypernyms of hairnet include mesh, meshing, net, network.

hairnet (noun)	meshwork (noun)
a small net that some women wear over their hair to keep it in place	an open fabric of string or rope or wire woven together at regular intervals