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A man doing free solo in Yosemite, USA

Noun

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free solo (plural free solos)

  1. (climbing) An ascent in which the climber does not use ropes or other protection for safety.

Verb

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free solo (third-person singular simple present free soloes, present participle free soloing, simple past and past participle free soloed)

  1. (climbing) To climb without ropes or other protection.
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