scrub

(noun) dense vegetation consisting of stunted trees or bushes. Synonyms: chaparral, bush.

(noun) the act of cleaning a surface by rubbing it with a brush and soap and water. Synonyms: scrubbing, scouring.

(verb) clean with hard rubbing. Synonyms: scour. Examples: "She scrubbed his back."

(verb) wash thoroughly. Synonyms: scrub up. Examples: "Surgeons must scrub prior to an operation."

(verb) postpone indefinitely or annul something that was scheduled. Synonyms: cancel, call off, scratch. Examples: "Call off the engagement." "Cancel the dinner party." "We had to scrub our vacation plans." "Scratch that meeting--the chair is ill."

(adj) (of domestic animals) not selectively bred.