codon

/ˈkəʊ.dɒn/

//ˈkəʊ.dɒn// noun

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

The verdict

“codon” is uncommon English (frequency #56,019 among 5,599 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#56,019
frequency rank, English
5,599
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A handbell used for summoning monks.

Corpus desk

Index EN-codon · codon · English

codon · rank #56,019 · 0 variants · 0 confusables

  • FREQ-RARE #56,019
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH codification

Nearest frequency peer: codification (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “codon”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “codon” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for codon
PropertyValue
Headwordcodon
LanguageEnglish
Part of speechNoun
IPA/ˈkəʊ.dɒn/
Letters5
Frequency rank#56,019
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “codon” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).codonfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “codification” (#56,018), “Coetzee” (#56,020), “coarsely” (#56,017). Among 5,599 “C” headwords, “codon” is #56,019. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

codon is uncommon English at frequency #56,019 among 5,599 “C” headwords, classed as anoun, transcribed /ˈkəʊ.dɒn/. Rarity is why readers land here mid-draft. 2 senses are on record.

codon has no tracked misspelling variants, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From Latin codon, from Ancient Greek κώδων (kṓdōn). The correct English form is codon, spelled C-O-D-O-N.

Definition

  1. 1
    A handbell used for summoning monks.
  2. 2
    The "bell" or flaring mouth of a trumpet.

Etymology

From Latin codon, from Ancient Greek κώδων (kṓdōn).

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 "codon"?
"codon" is spelled C-O-D-O-N. The IPA pronunciation is /ˈkəʊ.dɒn/.
What does "codon" mean?
As a noun, "codon" means: A handbell used for summoning monks.
How do you pronounce "codon"?
The IPA (International Phonetic Alphabet) transcription for "codon" is /ˈkəʊ.dɒn/. 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 "codon"?
From Latin codon, from Ancient Greek κώδων (kṓdōn). 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "codon", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list