octagon
noun
oc·ta·gon ˈäk-tə-ˌgän 
: a polygon of eight angles and eight sides
octagonal
äk-ˈta-gə-nᵊl
adjective octagonally
äk-ˈta-gə-nᵊl-ē
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
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 Word History
Etymology
Latin octagonum, from Greek oktagōnon, from okta- + -gōnon -gon
First Known Use
1594, in the meaning defined above
Kids Definition
octagon
noun
oc·ta·gon ˈäk-tə-ˌgän
: a flat geometric figure with eight angles and eight sides