hand throttle vs lever

hand throttle and lever both are nouns.

Word	Noun	Adjective	Verb	Adverb
hand throttle	Yes	No	No	No
lever	Yes	No	Yes	No

As nouns, lever is a hypernym of hand throttle; that is, lever is a word with a broader meaning than hand throttle:

hand throttle (noun)	lever (noun)
a hand-operated lever that controls the throttle valve	a rigid bar pivoted about a fulcrum
	a flat metal tumbler in a lever lock
	a simple machine that gives a mechanical advantage when given a fulcrum

hand throttle (verb)	lever (verb)
	to move or force, especially in an effort to get something open