say it: skruhb
scrub is a verb, noun and adjective meaning "clean with hard rubbing". It carries 6 recorded senses.
dense vegetation consisting of stunted trees or bushes
(of domestic animals) not selectively bred
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for scrub come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.