n. 25B6; verb
she grated the cheese : SHRED, pulverize, mince, grind, granulate, crush, crumble.
her bones grated together : GRIND, rub, rasp, scrape, jar, grit, creak.
the tune grates slightly : IRRITATE, set someone's teeth on edge, jar; annoy, nettle, chafe, fret; informal aggravate, get on someone's nerves, get under someone's skin, get someone's goat.