grate vs gravel

grate and gravel both are nouns.

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

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

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

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

grate (verb)	gravel (verb)
make a grating or grinding sound by rubbing together	be a mystery or bewildering to
scratch repeatedly	cover with gravel
reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface	cause annoyance in; disturb, especially by minor irritations
gnaw into; make resentful or angry
furnish with a grate