dive brake vs airbrake

dive brake and airbrake both are nouns.

Word	Noun	Adjective	Verb	Adverb
dive brake	Yes	No	No	No
airbrake	Yes	No	No	No

As nouns, dive brake and airbrake are synonyms defined as:

dive brake and airbrake: a small parachute or articulated flap to reduce the speed of an aircraft

dive brake (noun)	airbrake (noun)
a small parachute or articulated flap to reduce the speed of an aircraft	a vehicular brake that operates by compressed air; especially for heavy vehicles
	a small parachute or articulated flap to reduce the speed of an aircraft