The Sole is the bottom of the foot. Much like the palm of the hand, it has thicker skin than most other parts of the body, and is relatively less pigmented. A set of creases, formed in the womb, criss-cross the sole. [1]

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In footwear, sole also refers to the bottom of a shoe.

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Sole also refers to a type of edible fish; see Sole (fish).

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Sole is a rapper and co-creator of the Anticon record label.

The "Sole" of the foot is known in medical terms as the plantar aspect.