octagon

noun

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The film unfolds in a dreamy, meandering flow, following Mark around the world and into his home, gliding from the pressures of the octagon (where MMA athletes duke it out) to scenes of more quotidian domesticity. Richard Lawson, Rolling Stone, 1 Oct. 2025 What horses are to Jokic, octagons are to Jamal. Sean Keeler, Denver Post, 30 Sep. 2025 Fans have been waiting for Michael Chandler and Conor McGregor to duke it out in the octagon, but injuries and other factors have postponed the bout. Ryan Morik, FOXNews.com, 29 Sep. 2025 Chimaev is a heavy favorite to win, but anything can happen when two fighters step into the octagon. Tyler Everett, MSNBC Newsweek, 17 Aug. 2025 See All Example Sentences for octagon

Word History

Etymology

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

Browse Nearby Words

Cite this Entry

“Octagon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/octagon. Accessed 7 Oct. 2025.

Kids Definition

octagon

noun
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

Last Updated: - Updated example sentences
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