Examples from the Web for fingernail
We could find Waldo anywhere while tripping—like beneath a fingernail or inside our eyelid.
She tapped her fingernail against her teeth as she looked him up and down.Ralestone Luck|Andre Norton
A fingernail could not grow from one to two inches long on the hand of one engaged in daily toil, for it would break off.Seven Legs Across the Seas|Samuel Murray
Frey reached in his pocket and pulled out a safety match and flicked it with his fingernail.