compel vs need

compel is not a noun while need is a noun.

Word	Noun	Adjective	Verb	Adverb
compel	No	No	Yes	No
need	Yes	No	Yes	No

As verbs, need is a hypernym of compel; that is, need is a word with a broader meaning than compel:

Other hypernyms of compel include ask, call for, demand, involve, necessitate, postulate, require, take.

compel (noun)	need (noun)
	the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior
	anything that is necessary but lacking
	a condition requiring relief
	a state of extreme poverty or destitution

compel (verb)	need (verb)
force somebody to do something	have need of
necessitate or exact	have or feel a need for
	require as useful, just, or proper