forewing vs fore-wing

forewing and fore-wing both are nouns.

Word	Noun	Adjective	Verb	Adverb
forewing	Yes	No	No	No
fore-wing	Yes	No	No	No

As nouns, forewing and fore-wing are synonyms defined as:

forewing and fore-wing: either of the anterior pair of wings on an insect that has four wings

Other synonyms of forewing include fore wing.

forewing (noun)	fore-wing (noun)
either of the anterior pair of wings on an insect that has four wings	either of the anterior pair of wings on an insect that has four wings