1. (noun) grate, grating
a barrier that has parallel or crossed bars blocking a passage but admitting air
Synonyms: grating, diffraction grating, grate
Antonyms: euphonous, euphonious
2. (noun) grate, grating
a frame of iron bars to hold a fire
Synonyms: grating, diffraction grating, grate
Antonyms: euphonious, euphonous
3. (adj) diffraction grating, grating
optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum
Synonyms: grating, diffraction grating, grate
Antonyms: euphonious, euphonous
4. (adj) grating, gravelly, rasping, raspy, rough, scratchy
unpleasantly harsh or grating in sound
Synonyms: pugnacious, irritable, approximative, rough, unsmooth, cranky, boisterous, scratchy, pettish, fierce, abrasive, peevish, uncut, jumpy, rocky, uneven, harsh, shingly, gravelly, approximate, crude, jolting, spotty, jolty, petulant, rasping, bumpy, nettlesome, testy, tetchy, raspy, fractious, techy, pebbly, peckish, grating
Antonyms: euphonious, euphonous
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Synonyms and Antonyms of grating 
