transitive verb grated grat′ed, grating grat′·ing

1. to grind into shreds or particles by rubbing or scraping
2. to rub against (an object) with a harsh, scraping sound
3. to grind (the teeth) together with a rasping sound
4. to irritate; annoy; fret

Etymology: ME graten < OFr grater (Fr gratter) < Frank *kratton, akin to OHG chrazzōn (Ger kratzen), to scratch < IE base *gred- > Alb gërrusë, scraper

intransitive verb

1. to grind or rub with a harsh scraping or rasping sound
2. to make a harsh or rasping sound
3. to have an irritating or annoying effect

noun

1. grating (sense )
2. a frame of metal bars for holding fuel in a fireplace, stove, or furnace
3. a fireplace
4. Mining a screen for grading ores

Etymology: ME, trellis, lattice < ML grata, crata < L cratis, a hurdle, crate

transitive verb grated grat′ed, grating grat′·ing