"scrub" in the noun sense
1. scrub, chaparral, bush
dense vegetation consisting of stunted trees or bushes
2. scrub, scrubbing, scouring
the act of cleaning a surface by rubbing it with a brush and soap and water
"scrub" in the verb sense
1. scrub, scour
clean with hard rubbing
"She scrubbed his back"
2. scrub, scrub up
"surgeons must scrub prior to an operation"
3. cancel, call off, scratch, scrub
postpone 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
"scrub" in the adjective sense
of domestic animals) not selectively bred
Source: WordNet® (An amazing lexical database of English)
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