spark arrester vs meshwork

spark arrester and meshwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
spark arrester	Yes	No	No	No
meshwork	Yes	No	No	No

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

spark arrester: a wire net to stop sparks from an open fireplace or smokestack
meshwork: an open fabric of string or rope or wire woven together at regular intervals

Other hypernyms of spark arrester include mesh, meshing, net, network.

spark arrester (noun)	meshwork (noun)
a wire net to stop sparks from an open fireplace or smokestack	an open fabric of string or rope or wire woven together at regular intervals
electrical device to reduce sparking when electrical contacts are opened or closed