colon

/ˈkəʊ.lən/

//ˈkəʊ.lən// noun

"colon" is a 5-letter English headword indexed on PlainSpell.

The verdict

“colon” is a moderately-common English word, ranked #12,945 in English word frequency and used as a noun.

#12,945
frequency rank, English
5
letters
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The punctuation mark ⟨:⟩.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

colon vs con
60% similar
colon vs coo
60% similar
colon vs cool
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for colon
PropertyValue
Headwordcolon
LanguageEnglish
Part of speechNoun
IPA/ˈkəʊ.lən/
Letters5
Frequency rank#12,945
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “colon” 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). colon lands here:

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

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

Spelling & Dictionary Insight

The English entry for colon is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈkəʊ.lən/. Corpus data places it at rank #12,945 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 7 likely wrong-spelling variants for colon, with forms such as "ccolon", "cloon", and "collon". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "con", "coo", "cool", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Latin cōlon (“a member of a verse of poem”), from Ancient Greek κῶλον (kôlon, “a member, limb, clause, part of a verse”). The correct English form is colon, spelled C-O-L-O-N.

Definition

  1. 1
    The punctuation mark ⟨:⟩.
  2. 2
    The triangular colon (especially in context of not being able to type the actual triangular colon).
  3. 3
    A rhetorical figure consisting of a clause which is grammatically, but not logically, complete.
  4. 4
    A clause or group of clauses written as a line, or taken as a standard of measure in ancient manuscripts or texts.

Etymology

From Latin cōlon (“a member of a verse of poem”), from Ancient Greek κῶλον (kôlon, “a member, limb, clause, part of a verse”).

Synonyms

This word in other languages

Common misspellings

Also misspelled as: ccolon,cloon,collon,colno,colonn,cooln,oclon

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of colon - 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.

ccolon1cloon2collon1colno2colonn1cooln2oclon2
Edit distance from "colon"

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 "colon"?
"colon" is spelled C-O-L-O-N. The IPA pronunciation is /ˈkəʊ.lən/.
What does "colon" mean?
As a noun, "colon" means: The punctuation mark ⟨:⟩.
What words are commonly confused with "colon"?
"colon" is commonly confused with "con", "coo", "cool". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "colon"?
The IPA (International Phonetic Alphabet) transcription for "colon" is /ˈkəʊ.lən/. 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 "colon"?
From Latin cōlon (“a member of a verse of poem”), from Ancient Greek κῶλον (kôlon, “a member, limb, clause, part of a verse”). 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 “colon”

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

  • The one correct English spelling is C-O-L-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkəʊ.lən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “con” - see the side-by-side comparison. colon vs con
  • Browse more English words and confusable pairs in the same reference. English words
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