: a person who accompanies an invited guest to an event or gathering at which guests are allowed to bring a companion or partner
My husband twice received handsome engraved invitations to presidential dinners. For those events and many others, I was the perpetual plus-one.Ana Marie Cox

Examples of plus-one in a Sentence

Recent Examples on the Web
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Who can grab it, and who is the plus-one in a relationship? Rosy Cordero, Deadline, 11 May 2026 Kidman, a co-chair of the 2026 Met Gala, brought her daughter Sunday as her plus-one, though the 17-year-old’s attendance bent the event’s 18-and-over rule. Kayla Grant, PEOPLE, 11 May 2026 Other potential comps Wheeler mentioned were Nikita Kucherov and Artemi Panarin for McKenna and Henrik Zetterberg for Stenberg, although none of those three were playing in the NHL in their draft-plus-one season. James Mirtle, New York Times, 6 May 2026 Bruce, an airline worker, has hitherto handed off his plus-one flight privileges to Simon, who keenly exploits them to keep filming his globe-trotting doc. Guy Lodge, Variety, 3 May 2026 See All Example Sentences for plus-one

Word History

First Known Use

1977, in the meaning defined above

Time Traveler
The first known use of plus-one was in 1977

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Cite this Entry

“Plus-one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plus-one. Accessed 20 May. 2026.

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