Nouns

(n)scrub, chaparral, bushdense vegetation consisting of stunted trees or bushes
(n)scrub, scrubbing, scouringthe act of cleaning a surface by rubbing it with a brush and soap and water

Verbs

(v)scrub, scourclean with hard rubbing“She scrubbed his back”
(v)scrub, scrub upwash thoroughly“surgeons must scrub prior to an operation”
(v)cancel, call off, scratch, scrubpostpone indefinitely or annul something that was scheduled“Call off the engagement”, “cancel the dinner party”, “we had to scrub our vacation plans”, “scratch that meeting — the chair is ill”

Adjectives

(s)scrub(of domestic animals) not selectively bred