SCRUB

(CLEAN) [verb] -bb- - to rub (something) hard in order to clean it, esp. using a stiff brush, soap and waterI used to scrub the kitchen floor every Monday. [T]She scrubbed (at) the mark on the wall for ages, but it wouldn't come off. [T; I + at]He scrubbed the old saucepan clean, and it looked as good as new. [T + object + adjective]Surgeons have to scrub up (= wash their hands and arms very carefully) before performing an operation.A scrubbing brush (US also scrub brush) is a stiff brush used for scrubbing floors.