sandpaper

sand +‎ paper

• (US) IPA^(key): /ˈsændˌpeɪpɚ/

• Audio (US)

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sandpaper (usually uncountable, plural sandpapers)

1. A strong paper coated with sand or other abrasive material for smoothing and polishing.
2. A sheet of such paper.

• sanding paper

sandpaper (third-person singular simple present sandpapers, present participle sandpapering, simple past and past participle sandpapered)

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

• buff out
• sand down