21-gon

Fetched 2026-10-26 (cache).

Synonyms: 21, 11, 51, 2d, 2a, m1, t1, 22, 20, a1, 24, 25

Antonyms: 21, 11, 51, 2d, 2a, m1, t1, 22, 20, a1, 24, 25

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|geometry}} {{synonym of|en|icosihenagon}}: A [[polygon]] with [[twenty-one]] edges and twenty-one angles.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.