brush up on

[brʌʃ ʌp]

Meaning

to refresh your knowledge

Examples 👇

With the extra spare time you have these days, now's a great time to brush up on these essential soft skills like being proactive and confident. The Daily Caller

10 Awesome Online Cooking Classes to Help You Brush Up on Your Kitchen Skills During Quarantine. Yahoo Lifestyle

Only if politicians brush up on basic economics. By Veronique de Rugy, Creators Syndicate; May 1, 2020. Tyler Morning Telegraph

Think of this as the perfect pan for anyone using social distancing as a chance to brush up on those chef skills. CNN

Brush up on your dental habits with these 10 tips to avoid problems and keep your smile glowing. South Wales Argus

He has even trained with boxing legend Mike Tyson in a bid to brush up on his hand speed. The Sun