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to brush up
[phrase form: brush]
01
to practice and improve skills or knowledge that one has learned in the past
Transitive: to brush up a skill or knowledge
Grammatical Information
Action verb
Regular
Separable
Present tense
brush up
3rd person singular
brushes up
Past simple
brushed up
Past participle
brushed up
Examples
The chef is brushing up on culinary techniques to stay updated.
02
to make something better as if by polishing and removing dust
Transitive: to brush up a surface
Examples
The jeweler carefully brushed up the silver necklace, removing any tarnish.
