brushes up
Polishes rusty knowledge
To brush up is to refresh or improve skills or knowledge that have grown rusty: I need to brush up on my Spanish before the trip.
The phrase suggests polishing something that already exists rather than learning from scratch.
A brush-up is a quick review or refresher: a brush-up course in first aid.
- recallMemory retrieval act
- language learningGaining fluency in another tongue
- studyDeliberate learning effort
- night classCourse held after sunset
- crash courseBrief, concentrated instruction
revisit · dust off · revise · refresh · practice · technical skills · rehearse · professional development · train · remember · refine · exercises · rusty · out of practice · drills · polish · exam preparation · memorize