octagon

[ ok-tuh-gon, -guh n ]

/ ˈɒk təˌgɒn, -gən /

SEE MORE SYNONYMS FOR octagon ON THESAURUS.COM

noun

a polygon having eight angles and eight sides.

RELATED WORDS

Nearby words

octa, octa-, octachord, octad, octadecanoic acid, octagon, octagon house, octagon scale, octagonal, octahedral, octahedrite

Origin of octagon

1650–60; < Latin octagōnon < Greek oktágōnon, noun use of neuter of oktágōnos octangular; see octa-, -gon

Also called octangle.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for octagon

Octagon is primarily known for its sports clients like Michael Phelps and Justin Tuck.
The Man Behind Piers Morgan|Sean Macaulay|December 12, 2010|DAILY BEAST
Octagon, ok′ta-gon, n. a plane figure of eight sides and eight angles.
Chambers's Twentieth Century Dictionary (part 3 of 4: N-R)|Various
Then take off the corners of the octagon, so as to produce a round tapered rod.
Hand-Craft|John D. Sutcliffe
A mile to the north-west of the part of the work just described are the Octagon and works in connection with it.
The Prehistoric World|E. A. Allen

He erected unsightly turrets at the four corners and removed the octagon.
The Cathedral Church of Peterborough|W.D. Sweeting
Some illegible lettering on barrel, which is octagon and extremely heavy.
A Catalogue of Early Pennsylvania and Other Firearms and Edged Weapons at "Restless Oaks"|Henry W. Shoemaker

British Dictionary definitions for octagon

octagon

less commonly octangle

/ (ˈɒktəɡən) /

noun

a polygon having eight sides

Word Origin for octagon

C17: via Latin from Greek oktagōnos, having eight angles

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012