brush up - definition and synonyms

phrasal verb [intransitive/transitive]
present tense
I/you/we/theybrush up
he/she/itbrushes up
present participlebrushing up
past tensebrushed up
past participlebrushed up
  1. to practise and improve your skills or knowledge of something

    I took a class to brush up my German before the trip.

    brush up on:

    the opportunity to brush up on various techniques

See also main entry: brush