Word.ws English Dictionary

21-gon

21-gon noun: synonym of icosihenagon: A polygon with twenty-one edges and twenty-one angles.

Noun

21-gon (plural 21-gons)

  1. Synonym of icosihenagon: A polygon with twenty-one edges and twenty-one angles.
    Synonyms:
    icosihenagon

Synonyms of 21-gon

Forms of 21-gon

plural21-gons

Origin of 21-gon

From 21 + -gon.

Questions about 21-gon

What does 21-gon mean?
21-gon means synonym of icosihenagon: A polygon with twenty-one edges and twenty-one angles.
What part of speech is 21-gon?
21-gon is a noun.
What is the plural of 21-gon?
The plural of 21-gon is 21-gons.

Words near 21-gon in the dictionary

  1. 20K
  2. 20Ks
  3. 20s
  4. 20th
  5. 20ᵗʰ
  6. 21-gon
  7. 21-gons
  8. 2100s
  9. 2110s
  10. 212
  11. 2120s

Source and license

Adapted from Wiktionary: 21-gon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “21-gon.” Word.ws, https://word.ws/21-gon. Based on Wiktionary, CC BY-SA 4.0.