nail enamel vs nail varnish

nail enamel and nail varnish both are nouns.

Word	Noun	Adjective	Verb	Adverb
nail enamel	Yes	No	No	No
nail varnish	Yes	No	No	No

As nouns, nail enamel and nail varnish are synonyms defined as:

nail enamel and nail varnish: a cosmetic lacquer that dries quickly and that is applied to the nails to color them or make them shiny

Other synonyms of nail enamel include nail polish.

nail enamel (noun)	nail varnish (noun)
a cosmetic lacquer that dries quickly and that is applied to the nails to color them or make them shiny	a cosmetic lacquer that dries quickly and that is applied to the nails to color them or make them shiny