fingernail [fingernails](covering near the tip of finger) noun [UK: ˌfɪŋ.ɡə.ˈneɪl] [US: ˈfɪŋ.ɡər.ˌnel]John chews on his fingernails. = John si mangia le unghie.
nail [nails](on fingers and toes) noun [UK: neɪl] [US: ˈneɪl]Cut your nails. = Tagliati le unghie.
unghia del piede noun
toenail [toenails](the plate covering the end of a toe) noun [UK: ˈtəʊ.neɪl] [US: ˈtoʊ.neɪl]