collagen

/ˈkɒləd͡ʒən/

//ˈkɒləd͡ʒən// noun

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

The verdict

“collagen” has 10 generated spelling variants in the English index at frequency #20,884. The variants make it a useful spelling check.

#20,884
frequency rank, English
5,599
“C” headwords
10
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The main structural protein in the extracellular matrix of the connective tissues of many animals.

Corpus desk

Index EN-collagen · collagen · English

collagen · rank #20,884 · 10 variants · 6 confusables

  • FREQ-MID #20,884
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-MID 6 pairs
  • VAR-MID 10 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH Colby

Nearest frequency peer: Colby (-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.

Rank peers near misspelling magnet “collagen”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “collagen” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

collagen vs college
75% similar
collagen vs Colleen
63% similar
collagen vs colleges
75% similar

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

Key facts for collagen
PropertyValue
Headwordcollagen
LanguageEnglish
Part of speechNoun
IPA/ˈkɒləd͡ʒən/
Letters8
Frequency rank#20,884
Misspellings tracked10
Confusable pairs6
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “collagen”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).collagenlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “Colby” (#20,883), “Civ” (#20,882), “chipped” (#20,881). Among 5,599 “C” headwords, “collagen” is #20,884. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around collagen (IPA /ˈkɒləd͡ʒən/), anoun. Corpus frequency is #20,884 among 5,599 “C” headwords. Dominant gloss: "The main structural protein in the extracellular matrix of the connective tissues of many animals.".

Our generated misspelling index lists 10 likely wrong-spelling variants for collagen, with forms such as "ccollagen", "clolagen", and "colagen". 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. It also participates in 6 confusable-pair relationships, "college", "Colleen", "colleges", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From French collagène, coined from Ancient Greek κόλλα (kólla, “glue”) and -γενής (-genḗs, “-forming”) (see -gen); it is the main substance that animal glues are derived from. Doublet of collage, colloid, and protocol. The correct English form is collagen, spelled C-O-L-L-A-G-E-N.

Definition

  1. 1
    The main structural protein in the extracellular matrix of the connective tissues of many animals.

Recorded use

Wiktionary example

These source excerpts show how collagen appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Science cannot yet account for the conversion of collagen into gelatin.

Etymology

From French collagène, coined from Ancient Greek κόλλα (kólla, “glue”) and -γενής (-genḗs, “-forming”) (see -gen); it is the main substance that animal glues are derived from. Doublet of collage, colloid, and protocol.

This word in other languages

Common misspellings

Also misspelled as:

  • ccollagen
  • clolagen
  • colagen
  • colalgen
  • collaegn
  • collagenn
  • collaggen
  • collagne
  • collgaen
  • ocllagen

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of collagen - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ccollagen1clolagen2colagen1colalgen2collaegn2collagenn1collaggen1collagne2
Edit distance from "collagen"

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 "collagen"?
"collagen" is spelled C-O-L-L-A-G-E-N. The IPA pronunciation is /ˈkɒləd͡ʒən/.
What does "collagen" mean?
As a noun, "collagen" means: The main structural protein in the extracellular matrix of the connective tissues of many animals.
What words are commonly confused with "collagen"?
"collagen" is commonly confused with "college", "Colleen", "colleges". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "collagen"?
The IPA (International Phonetic Alphabet) transcription for "collagen" is /ˈkɒləd͡ʒən/. 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 "collagen"?
From French collagène, coined from Ancient Greek κόλλα (kólla, “glue”) and -γενής (-genḗs, “-forming”) (see -gen); it is the main substance that animal glues are derived from. Doublet of collage, colloid, and protocol. 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 "collagen", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list