mending vs reparation

mending and reparation both are nouns.

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

As nouns, mending and reparation are synonyms defined as:

mending and reparation: the act of putting something in working order again

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

mending (noun)	reparation (noun)
the act of putting something in working order again	something done or paid in expiation of a wrong
garments that must be repaired	the act of putting something in working order again
	(usually plural) compensation exacted from a defeated nation by the victors
	compensation (given or received) for an insult or injury