An "accent nail" refers to one nail on your hand or foot that is different from the others in terms of color, design, or decoration. It is a way to make that specific nail stand out and add a bit of style and uniqueness to your overall look.
Sentences with «accent nail»
I could see myself wearing feathers at least for accent nails, maybe even the whole hand for a special occasion. (handmadedreamsofmine.com)
Of course you don't have to match your nail polish, I just happened to be wearing a white one with gold accent nails. (karinastylediaries.com)
It's considered to be a very classy nail polish color now, especially with a sparkly accent nail. (thefashionablehousewife.com)