rocket engine vs projectile

rocket engine and projectile both are nouns.

Word	Noun	Adjective	Verb	Adverb
rocket engine	Yes	No	No	No
projectile	Yes	Yes	No	No

rocket engine (noun)	projectile (noun)
a jet engine containing its own propellant and driven by reaction propulsion	a weapon that is forcibly thrown or projected at a targets but is not self-propelled
	any vehicle self-propelled by a rocket engine

rocket engine (adjective)	projectile (adjective)
	impelling or impelled forward