(sōl) noun
1. The bottom surface of the foot. ♦ Collateral adjectives: plantar, volar².
2. The bottom surface of a shoe, boot, etc.
3. The lower part of a thing, or the part on which it rests when standing; especially, the bottom part of a plowshare.
4. The bottom part of the head of a golf club.
—v.t. soled, sol·ing
1. To furnish with a sole; resole, as a shoe.
2. In golf, to allow (the clubhead) to rest flat on the ground, just behind the ball. ♦ Homophone: soul. [<OF <Med. L sola, var. of L solea a sandal]

(sōl) noun
1. Any of several flatfishes allied to the flounders, having a small mouth and small eyes set close together on one side of the head; especially, the common European sole (Solea solea), highly esteemed as food, and the American sole (genus Achirus), common on the Atlantic coast of the United States.
2. One of various flounders, as Psettichthys melanostictus, a food fish of the Pacific coast of the United States. ♦ Homophone: soul. [<OF <L solea]

(sōl) adjective
1. Being alone or the only one; existing or acting without another; only; individual.
2. Law a Unmarried; single: feme sole (an unmarried woman). b Having exclusive rights; absolute: opposed to joint: a sole tenant.
3. Archaic Solitary. See synonyms under SOLITARY. ♦ Homophone: soul. [<OF sol <L solus alone]