nail polish
US /ˈneɪl ˌpɑː.lɪʃ/
UK /ˈneɪl ˌpɑː.lɪʃ/

1.
a varnish applied to fingernails or toenails to color or protect them
:
•
She chose a bright red nail polish for her manicure.
•
Don't forget to remove your old nail polish before applying a new coat.