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

Example Sentences

Recent Examples on the Web One hundred and ninety-eight Oregon wines entered the McMinnville Wine Classic’s octagon of flavor. Michael Alberty | For The Oregonian/oregonlive, oregonlive, 23 Jan. 2022 That connection can be seen in a YouTube video showing Atlas inside the octagon schooling then-UFC heavyweight contender Francis Ngannou on how to cut angles to setup knockout shots. Anthony Stitt, Forbes, 26 May 2021 Although Khabib Nurmagomedov hasn't been inside the UFC octagon in 13 months, the life and mind of the unbeaten lightweight champion have been fully occupied. Greg Beacham, Star Tribune, 23 Oct. 2020 The 39-year-old Xenia, Ohio native owns the UFC welterweight division records for finishes in the octagon (13) and knockouts (11). Jason Hoffman, Cincinnati.com, 13 May 2020 Besides a nearly empty arena and people staying far apart from one another outside the octagon? Morgan Campbell, New York Times, 9 May 2020 Nothing as entertaining inside — and maybe even outside — the octagon. Josh Peter, USA TODAY, 19 Jan. 2020 According to one report, the cage floor and padding of the octagon where fights take place were regularly cleaned during Saturday night's proceedings. Ravi Ubha, CNN, 10 May 2020 The second Magic Lining prototype consisted of 25 motors on felt fabric, arranged in a 20-by-20 centimeter octagon that resembled a spiderweb. Courtney Linder, Popular Mechanics, 29 Apr. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'octagon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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 9 Dec. 2022.

Kids Definition


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

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