ISEE/SSAT Vocabulary Builder›Words›O›octagon
ISEE/SSATeasy
octagon
a shape with eight straight sides and eight angles
octagon in a sentence
A stop sign is a red octagon with white lettering in the center.
Instead of a rectangular ring, the martial arts match took place inside a fenced octagon with eight equal walls.
Where it comes from
From Greek okto 'eight' + gonia 'angle'
Memory hook
OCTA (eight) + GON (angle) — eight angles, eight sides.
Word parts
- oct — eight
octagon: oct (eight) + gon (angle)