polish up

US /ˈpɑː.lɪʃ ʌp/

UK /ˈpɑː.lɪʃ ʌp/

1.

to improve something by making small changes to it

:

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You need to polish up your presentation skills before the conference.

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She spent hours polishing up her essay.

:

refine hone perfect brush up sharpen

2.

to make something shiny by rubbing it

:

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He needs to polish up his old shoes.

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Can you help me polish up the silver cutlery?

:

shine buff burnish furbish

:

polish nail polish polish off on the up and up up up to come up with