repay vs reimburse

repay and reimburse both are verbs.

Word	Noun	Adjective	Verb	Adverb
repay	No	No	Yes	No
reimburse	No	No	Yes	No

As verbs, reimburse is a hyponym of repay; that is, reimburse is a word with a more specific, narrower meaning than repay:

Other hyponyms of repay include restitute, restore.

repay (verb)	reimburse (verb)
answer back	pay back for some expense incurred
pay back	reimburse or compensate (someone), as for a loss
make repayment for or return something
act or give recompense in recognition of someone's behavior or actions