brush up

== English == === Pronunciation === === Verb === brush up (third-person singular simple present brushes up, present participle brushing up, simple past and past participle brushed up) To paint, or make clean or bright with a brush. April 10, 1706, Alexander Pope, letter to William Wycherley You have commissioned me to paint your shop, and I have done my best to brush you up like your neighbours. (idiomatic) To review; to improve an existing but rusty or underdeveloped skill. Synonym: rub up (slang, transitive) To beat up, annoy or insult (someone). ==== Translations ====