landing flap vs flaps

landing flap and flaps both are nouns.

Word	Noun	Adjective	Verb	Adverb
landing flap	Yes	No	No	No
flaps	Yes	No	No	No

As nouns, flaps is a hypernym of landing flap; that is, flaps is a word with a broader meaning than landing flap:

landing flap: a flap on the underside of the wing that is lowered to slow the plane for landing
flaps: a movable airfoil that is part of an aircraft wing; used to increase lift or drag

Other hypernyms of landing flap include flap.

landing flap (noun)	flaps (noun)
a flap on the underside of the wing that is lowered to slow the plane for landing	a movable airfoil that is part of an aircraft wing; used to increase lift or drag