Sole spray for climbing shoes. Being the only one: the sole survivor of the crash. : the part of an item of footwear on which the sole rests and upon which the wearer treads Look up Sole, sole, soles, solé, or solę in Wiktionary, the free dictionary. SOLE definition: 1. [countable], pl. Learn more. Sole definition: being the only one; only. See examples of SOLE used in a sentence. (esp. when thought of as a group) sole, (esp. Definition of sole noun in Oxford Advanced Learner's Dictionary. tle3xoo1ecivjl0kd0bthri2jbjtyeulfo1sech