oc·​ta·​gon ˈäk-tə-ˌgän How to pronounce octagon (audio)
: a polygon of eight angles and eight sides
octagonal adjective
octagonally adverb

Examples of octagon in a Sentence

Recent Examples on the Web Contestants fought on a blue canvas devoid of sponsorships, a stark contrast to the Monster Energy, Modelo and DraftKings logos now emblazoned inside U.F.C. octagons. Emmanuel Morgan, New York Times, 13 Apr. 2024 Instead, Musk only suggested a date for a practice round in the octagon at Zuckerberg's home, Zuckerberg said. Ashley Belanger, Ars Technica, 14 Aug. 2023 It’s also heavily influenced by mixed martial arts and UFC, since Gyllenhaal’s Dalton goes from being a dangerous fighter in the octagon to breaking bones in a breezy tavern setting. Brian Truitt, USA TODAY, 21 Mar. 2024 These tiles come in octagon, cross, square, triangular and rectangular pieces in numerous sizes, all available in 24 colors. Jeanne Huber, Washington Post, 8 Dec. 2023 Enjoy behind-the-scenes access with a VIP Experience package that can feature premium seating, post-fight octagon experience, all-inclusive hospitality, meet-and-greets with UFC fighters and more. The McClatchy Media Network, Miami Herald, 4 Mar. 2024 The green Millenia Stud Earrings from Swarovski are octagon cut and gold-tone plated for a truly eye-catching look that can be dressed up or down. Enjanae' Taylor, Southern Living, 21 Nov. 2023 However, the French-Cameroonian later moved to the octagon and went on to have huge success with the UFC. Ben Morse, CNN, 8 Mar. 2024 Two additional rectangular rooms flank the main building, and house a large office where the pair work side by side as well as a two-story library to showcase an exciting and still growing collection of books, including several on the American history of architectural octagons. Jennifer Mazi, Kansas City Star, 30 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'octagon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Latin octagonum, from Greek oktagōnon, from okta- + -gōnon -gon

First Known Use

1594, in the meaning defined above

Time Traveler
The first known use of octagon was in 1594

Dictionary Entries Near octagon

Cite this Entry

“Octagon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/octagon. Accessed 27 May. 2024.

Kids Definition


oc·​ta·​gon ˈäk-tə-ˌgän How to pronounce octagon (audio)
: a polygon with eight angles and eight sides
octagonal adjective

More from Merriam-Webster on octagon

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