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.

---

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

See Examples For:

co-host

In this week’s Amicus, Dahlia Lithwick continues the “By the People” series, in which she discusses the landmark 2015 marriage-equality decision Obergefell with co-host Mark Joseph Stern and gay rights advocate Marc Solomon.

From Slate ● Aug. 6, 2026

Brooke Warner, publisher of She Writes Press and co-host of the Memoir Nation podcast, says this has put pressure on memoirists to push the envelope and find ever-more-shocking traumas to mine.

From The Wall Street Journal ● Aug. 5, 2026

Morocco is to co-host the 2030 World Cup and Moroccan Football chief Fouzi Lekjaa is one of the few to have publicly supported Infantino since the humiliating climbdown.

From Barron's ● Aug. 5, 2026

Ironically, Chris Simms, Florio’s podcast co-host and a close friend and former college teammate of the 49ers coach, provided details about Shanahan’s injuries and his family’s reaction.

From Los Angeles Times ● Jul. 28, 2026

In 1975 he became the traveling co-host of Good Morning America on ABC network; in the 20 months that followed, his assignments took him to more than two dozen countries.

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