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octagon
noun
See more 3-syllable nouns

Divide octagon into syllables:

oc · ta · gon

How to pronounce octagon:

Definition of octagon:

octagon (noun):
an eight-sided polygon.
a polygon of eight angles and eight sides

Antonyms for octagon:

revolutioneyegyrezodiaccirquecycleroundbowglobearc
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Other 3-syllable words like octagon

Here are some other common words that have 3 syllables, like octagon does.

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