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Added 10 October 2026

heptagon

/ˈhɛp.tə.ɡɒn/ noun

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about heptagon at Wordnik → Where our words come from →

A polygon with seven sides and seven angles.

Origin

Since 16th century, from Ancient Greek ἑπτάγωνον (heptágōnon), from ἑπτά (heptá, “seven”) + γωνία (gōnía, “angle”). By surface analysis, hepta- + -gon.

From Wiktionary, via Kaikki.org (CC BY-SA)

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