A seven-sided polygon is typically called a heptagon, but is occasionally referred to as a septagon.
Source: tatoeba (3151905)
Heptagon
/ˈhɛp.tə.ɡɒn/
Synonyms for "heptagon" (7 found)
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More general
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3 entriescyclic heptagonirregular heptagonregular heptagon
Collocations
6 entriesInflections
1 entriesDerivations
2 entriesSample sentences
1 total sentences available.