Noun nail polish has 1 sense

1. nail polish, nail enamel, nail varnish - a cosmetic lacquer that dries quickly and that is applied to the nails to color them or make them shiny
   --₁ is a kind of cosmetic, cosmetics; enamel
   

Nail polish

Noun:

An enamel or lacquer applied to the nails as decoration or protection.

Sample sentence:

I need to buy a new bottle of nail polish to match my dress for the party.

Verb:

To apply or provide a finish with nail polish.

Sample sentence:

She skillfully nail polished her nails with a metallic shade.

Adjective:

Having the characteristic of nail polish.

Sample sentence:

The models showcased their nail-polished fingers on the runway.