nail polish

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