polish up
Verb
Meaning
bring to a highly developed, finished, or refined state
Source: WordNetSynonyms
Antonyms
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Examples
polish your social manners
Even the banks welcomed the opportunity to polish up their image.
SFF-ites, polish up ye olde essay-writing skills!
Schools are there to polish up and fine-tune what we the parents are already working into the lives of our children.
Needs to polish up his technique as a blocker in the run game.
Stage one of Margot’s plan had been to retreat to her apartment to regroup, polish up her résumé, and compose a list of companies she could apply to, but her unit’s new tenants kept stopping by to measure for new flooring and curtains.