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1. The underside of the foot.
2. The underside of a shoe or boot, often excluding the heel.
3. The part on which something else rests while in a vertical position, especially:
a. The bottom surface of a plow.
b. The bottom surface of the head of a golf club.
tr.v. soled, sol·ing, soles
1. To furnish (a shoe or boot) with a sole.
2. To put the sole of (a golf club) on the ground, as in preparing to make a stroke.
[Middle English, from Old French, from Latin solea, sandal, from solum, bottom, sole of the foot.]
1. Being the only one: the sole survivor of the crash.
2. Of or relating to only one individual or group; exclusive: She took sole command of the ship.
n. pl. sole or soles
1. Any of various chiefly marine flatfishes of the family Soleidae, having both eyes on the right side of the body, and including food fishes such as the Dover sole of the Atlantic Ocean.
2. Any of various other flatfishes, especially certain flounders.
[Middle English, from Old French, from Latin solea, sandal, flatfish (from its shape); see sole1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.