rocket vs impel

rocket is a noun but impel is not a noun.

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

As verbs, impel is a hypernym of rocket; that is, impel is a word with a broader meaning than rocket:

Other hypernyms of rocket include propel.

rocket (noun)	impel (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

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