mending vs repair

mending and repair both are nouns.

Word	Noun	Adjective	Verb	Adverb
mending	Yes	No	No	No
repair	Yes	No	Yes	No

As nouns, mending and repair are synonyms defined as:

Other synonyms of mending include fix, fixing, fixture, mend, reparation.

mending (noun)	repair (noun)
the act of putting something in working order again	the act of putting something in working order again
garments that must be repaired	a frequently visited place
	a formal way of referring to the condition of something

mending (verb)	repair (verb)
	give new life or energy to
	restore by replacing a part or putting together what is torn or broken
	set straight or right
	move, travel, or proceed toward some place
	make amends for; pay compensation for