impel vs rocket

impel is not a noun while rocket is a noun.

Word	Noun	Adjective	Verb	Adverb
impel	No	No	Yes	No
rocket	Yes	No	Yes	No

As verbs, rocket is a hyponym of impel; that is, rocket is a word with a more specific, narrower meaning than impel:

Other hyponyms of impel include flip, carry, kick, pole, punt, hit, throw, drive, launch, catapult, project, send off, loft.

impel (noun)	rocket (noun)
	a jet engine containing its own propellant and driven by reaction propulsion
	any vehicle self-propelled by a rocket engine
	sends a firework display high into the sky
	propels bright light high in the sky, or used to propel a lifesaving line or harpoon
	erect European annual often grown as a salad crop to be harvested when young and tender

impel (verb)	rocket (verb)
cause to move forward with force	propel with a rocket
urge or force (a person) to an action; constrain or motivate	shoot up abruptly, like a rocket