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co-host

[verb koh-hohst, koh-hohst; noun koh-hohst]Radio and Television.
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verb (used with or without object)
  1. to host (a program) jointly with another.
noun
  1. a person who co-hosts.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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