Definition of "Grate" :

noun: a frame of iron bars to hold a fire

noun: a barrier that has parallel or crossed bars blocking a passage but admitting air

noun: a harsh rasping sound made by scraping something

verb: scratch repeatedly

verb: make a grating or grinding sound by rubbing together

"Grate one's teeth in anger."

verb: reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface

"Grate carrots and onions."

verb: gnaw into; make resentful or angry

verb: furnish with a grate

"A grated fireplace."