mend vs heal

mend is a noun but heal is not a noun.

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

As verbs, mend and heal are synonyms defined as:

mend (noun)	heal (noun)
the act of putting something in working order again
sewing that repairs a worn or torn hole (especially in a garment)

mend (verb)	heal (verb)
restore by replacing a part or putting together what is torn or broken	get healthy again
heal or recover	provide a cure for, make healthy again
	heal or recover