Grate’

v. (ting) 1 reduce to small partides by rubbing on a serrated surface. 2 (often foil. by against, on) nib with a harsh scraping sound. 3 utter in a harsh tone. 0 (often foll. by on) a sound harshly. b have an irritating effect. 5 grind (one’s teeth). 6 creak.