brush up

US /brʌʃ ʌp/
UK /brʌʃ ʌp/
"brush up" picture
1.

to improve one's knowledge or skill in something quickly

:
•
I need to brush up on my Spanish before my trip to Mexico.
•
She decided to brush up on her coding skills.
:
reviewrefreshpolish upbone up onrelearn
:
brushscrub brushwire brushtoilet brushbrush offbrush downbrush aside