fore wing vs fore-wing

fore wing and fore-wing both are nouns.

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

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

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

Other synonyms of fore wing include forewing.

fore wing (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