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brush up

Definitions of brush up
  1. verb
    refresh one's memory
    synonyms: refresh, review
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    type of:
    call back, call up, recall, recollect, remember, retrieve, think
    recall knowledge from memory; have a recollection
  2. verb
    bring to a highly developed, finished, or refined state
    synonyms: burnish, polish, polish up, round, round off
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    type of:
    hone, perfect
    refine or make more perfect or effective
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