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.
Local businesses emanate for a few square blocks around Town Square, a paved octagon surrounded by trees and grass that also features a historic gazebo. Tara Massouleh McCay, Southern Living, 22 July 2025 In terms of his fighting career, McGregor has long touted his return to the octagon after his first attempt last June came to an unfortunate end due to a training injury. Jackson Thompson, FOXNews.com, 4 July 2025 Oliveira has won 13 of his last 15 times in the octagon, entering this fight. Ben Verbrugge, MSNBC Newsweek, 29 June 2025 The first-round knockout was a jarring return to the octagon. Jenny Catlin, New York Times, 21 June 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 27 Jul. 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

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