Heptagon

//ˈhɛp.tə.ɡɒn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A polygon with seven sides and seven angles.
  2. 2
    a seven-sided polygon wordnet

Synonyms

All synonyms
7-gonfigureseptagonseptettriangleweek

Example

More examples

"A seven-sided polygon is typically called a heptagon, but is occasionally referred to as a septagon."

Etymology

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

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.