scrub

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
scrub

Third-person singular
scrubs

Past tense
scrubbed

Past participle
scrubbed

Present participle
scrubbing

  1. When you scrub something, you use a piece of cloth to rub very hard against an object just to clean it.
    No matter how hard I scrub, I can never make this shirt shine again.