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

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

From Slate • Apr. 18, 2026

France said it would co-host a video conference with Britain on Friday of countries ready to contribute to a "purely defensive mission" to secure the Strait of Hormuz.

From Barron's • Apr. 14, 2026

On “Fox & Friends,” co-host Ainsley Earhardt bluntly asked “why now” at the start of an interview with the first lady’s top adviser the next day.

From Salon • Apr. 13, 2026

TV presenter Dan Walker is to appear at an employment tribunal after his former Channel 5 News co-host brought a case alleging she had faced bullying.

From BBC • Apr. 12, 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