pentagon

/ˈpɛn.təˌɡɑn/

//ˈpɛn.təˌɡɑn// noun

"pentagon" is a 8-letter English headword indexed on PlainSpell.

The verdict

“pentagon” has 12 generated spelling variants in the English index at frequency #11,263. The variants make it a useful spelling check.

#11,263
frequency rank, English
46,516
“P” headwords
12
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A polygon with five sides and five angles.

Key facts for pentagon
PropertyValue
Headwordpentagon
LanguageEnglish
Part of speechNoun
IPA/ˈpɛn.təˌɡɑn/
Letters8
Frequency rank#11,263
Misspellings tracked12
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “pentagon” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). pentagon lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around pentagon (IPA /ˈpɛn.təˌɡɑn/), anoun. Corpus frequency is #11,263 among 46,516 “P” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for pentagon, with forms such as "epntagon", "penatgon", and "penntagon". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. No confusable counterpart is on file for this word, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: 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… The correct English form is pentagon, spelled P-E-N-T-A-G-O-N.

Definition

  1. 1
    A polygon with five sides and five angles.
  2. 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.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: epntagon,penatgon,penntagon,pentaggon,pentagno,pentagonn,pentaogn,pentgaon,penttagon,petnagon,pnetagon,ppentagon

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of pentagon - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

epntagon2penatgon2penntagon1pentaggon1pentagno2pentagonn1pentaogn2pentgaon2
Edit distance from "pentagon"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "pentagon"?
"pentagon" is spelled P-E-N-T-A-G-O-N. The IPA pronunciation is /ˈpɛn.təˌɡɑn/.
What does "pentagon" mean?
As a noun, "pentagon" means: A polygon with five sides and five angles.
What are common misspellings of "pentagon"?
Common misspellings include "epntagon", "penatgon", "penntagon", "pentaggon", "pentagno". The correct spelling is "pentagon".
How do you pronounce "pentagon"?
The IPA (International Phonetic Alphabet) transcription for "pentagon" is /ˈpɛn.təˌɡɑn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "pentagon"?
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”). Equivalen... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “pentagon”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is P-E-N-T-A-G-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈpɛn.təˌɡɑn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Same frequency band

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list