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.
Mason Jones Defeats Jeremy Stephens Mason Jones opened his lightweight fight against Jeremy Stephens with kicks, controlling the center of the octagon. Trent Reinsmith, Forbes.com, 3 May 2025 Portnoy, who is Jewish, was wearing a white kippah and waving an Israeli flag and Silva celebrated his victory atop the octagon cage. Scott Thompson, FOXNews.com, 13 Apr. 2025 Some of the shapes featured are the octagon lily inspired by nature with a star cut at its center; the bead, ideal for crafting chains and links, or the pendeloque, shaped as a teardrop. Andrea Onate, Footwear News, 9 Apr. 2025 One unusual feature of Chesterton’s bandstand is its octagon shape and peaked roof. Jim Woods, Chicago Tribune, 2 Apr. 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 Jun. 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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