grate vs rile

grate is a noun but rile is not a noun.

Word	Noun	Adjective	Verb	Adverb
grate	Yes	No	Yes	No
rile	No	No	Yes	No

As verbs, rile is a hypernym of grate; that is, rile is a word with a broader meaning than grate:

Other hypernyms of grate include annoy, bother, chafe, devil, get at, get to, gravel, irritate, nark, nettle, rag, vex.

grate (noun)	rile (noun)
a frame of iron bars to hold a fire
a barrier that has parallel or crossed bars blocking a passage but admitting air
a harsh rasping sound made by scraping something

grate (verb)	rile (verb)
make a grating or grinding sound by rubbing together	make turbid by stirring up the sediments of
scratch repeatedly	cause annoyance in; disturb, especially by minor irritations
reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface
gnaw into; make resentful or angry
furnish with a grate