Meaning & use

octagon

noun·Academic

A two-dimensional shape with eight straight sides and eight angles.

See it in a sentence

A stop sign is shaped like a regular octagon with equal sides.

The architect designed the pavilion's floor as an octagon to create eight distinct viewing angles.

A note on using this word

In mixed martial arts, the Octagon refers informally to the eight-sided ring used in competitions.

Words with a similar meaning

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