sandpaper/ˈsændˌpeɪpɚ/EtymologyFrom sand + paper.nounStrong 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”A sheet of such paper.“I need a scraper and a sandpaper over here.”verbTo polish or grind (a surface) with or as if with sandpaper.