Sole

唯一の

yuiitsu no, yuitsu no

(only)

未婚

mikon

(unmarried; widowed)

独身

dokushin

(unmarried; widowed)

足の裏

ashi no ura

(bottom of the foot)

足裏

ashiura

(bottom of the foot)

靴底

kutsuzoko

(bottom of a shoe or boot)