# pentagon

> English word · Noun · IPA /ˈpɛn.təˌɡɑn/ · frequency rank #11,263

## Definitions
1. A polygon with five sides and five angles.
2. A fort with five bastions.

## Etymology
From Middle French pentagone, from Late Latin pentagōnum, from Ancient Greek πεντάγωνον (pentágōnon), noun use of the neuter of the adjective πεντάγωνος (pentágōnos, “five-angled”), from πέντε (pénte, “five”) + -γωνος (-gōnos, “angled”). Equivalent to penta- + -gon.

## Common misspellings (12)
`epntagon`, `penatgon`, `penntagon`, `pentaggon`, `pentagno`, `pentagonn`, `pentaogn`, `pentgaon`, `penttagon`, `petnagon`, `pnetagon`, `ppentagon`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/pentagon