mend vs better

mend and better both are nouns.

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

As verbs, better is a hypernym of mend; that is, better is a word with a broader meaning than mend:

mend: restore by replacing a part or putting together what is torn or broken
better: to make better

Other hypernyms of mend include ameliorate, amend, improve, meliorate.

As verbs, better is a hypernym of mend; that is, better is a word with a broader meaning than mend:

Other hypernyms of mend include ameliorate, improve, meliorate.

mend (noun)	better (noun)
the act of putting something in working order again	something superior in quality or condition or effect
sewing that repairs a worn or torn hole (especially in a garment)	the superior one of two alternatives
	someone who bets
	a superior person having claim to precedence

mend (adjective)	better (adjective)
	(comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another
	(comparative of `good') changed for the better in health or fitness
	(comparative and superlative of `well') wiser or more advantageous and hence advisable
	more than half

mend (verb)	better (verb)
restore by replacing a part or putting together what is torn or broken	get better
heal or recover	to make better
	surpass in excellence

mend (adverb)	better (adverb)
	comparative of `well'; in a better or more excellent manner or more advantageously or attractively or to a greater degree etc.
	from a position of superiority or authority