heal vs aid

heal is not a noun while aid is a noun.

Word	Noun	Adjective	Verb	Adverb
heal	No	No	Yes	No
aid	Yes	No	Yes	No

As verbs, aid is a hypernym of heal; that is, aid is a word with a broader meaning than heal:

Other hypernyms of heal include help.

heal (noun)	aid (noun)
	the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose
	the work of providing treatment for or attending to someone or something
	a person or thing that is a resource that helps make something easier or possible to do
	gift of money or other material help to support a person or cause

heal (verb)	aid (verb)
get healthy again	improve the condition of
provide a cure for, make healthy again	give help or assistance; be of service
heal or recover