co-host

American  

[koh-hohst, koh-hohst, koh-hohst] / ˌkoʊˈhoʊst, ˈkoʊˌhoʊst, ˈkoʊˌhoʊst /

Or cohost

verb (used with or without object)

1. to host (a program) jointly with at least one other person.

   It’s a daily talk show co-hosted by three women.

   They were a beloved comedy duo who cohosted on radio for 14 years before taking their variety hour to television.

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noun

1. a person who hosts a program jointly with at least one other person.

   Everyone was surprised when his co-host left the show at the peak of its popularity.

Etymology

Origin of co-host

First recorded in 1905–10 for the noun; co- ( def. ) + host ¹ ( def. )

Example Sentences

For all of this weekend's games, he takes on Tottenham fan Alfie Watts, co-host of the Race Across the World: The Detour visual podcast.

From BBC • Apr. 23, 2026

She announced her departure from the program last month, just as co-host Gayle King was signed to a new deal.

From Los Angeles Times • Apr. 22, 2026

A co-worker had asked me to co-host a podcast with her; now that was on hold.

From Slate • Apr. 18, 2026

Aly Terry said she and “Let’s Get Haunted” co-host Nat Strawn used to direct listeners to an Instagram page featuring images of items discussed on the podcast.

From The Wall Street Journal • Apr. 17, 2026

He's been co-host with Mike Douglas for three weeks and has appeared as a television guest with countless other celebrities.

From 100 New Yorkers of the 1970s by Millard, Max