Definition of "sandpaper" in English

noun

1. (uncountable) Strong paper coated with (traditionally) sand or (today) manufactured aluminum oxide, silicon carbide, or other abrasive material, used for smoothing and polishing.

   • Near-synonym: emery paper
   • They like to finish it off with a piece of 600-grit sandpaper before cleaning and painting.

2. (countable) A sheet of such paper.

   • I need a scraper and a sandpaper over here.

verb

1. (transitive) To polish or grind (a surface) with or as if with sandpaper.