rebate vs rusticate

rebate is a noun but rusticate is not a noun.

Word	Noun	Adjective	Verb	Adverb
rebate	Yes	No	Yes	No
rusticate	No	No	Yes	No

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

rebate (noun)	rusticate (noun)
a rectangular groove made to hold two pieces together
a refund of some fraction of the amount paid

rebate (verb)	rusticate (verb)
cut a rebate in (timber or stone)	lend a rustic character to
join with a rebate	give (stone) a rustic look
give a reduction in the price during a sale	send to the country
	suspend temporarily from college or university, in England
	live in the country and lead a rustic life