cotton wool

/ˈkɒtən wʊl/

//ˈkɒtən wʊl// noun

"cotton-wool" is a 10-letter English headword indexed on PlainSpell.

The verdict

“cotton wool” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Raw fibers of cotton before being processed.

Key facts for cotton wool
PropertyValue
Headwordcotton wool
LanguageEnglish
Part of speechNoun
IPA/ˈkɒtən wʊl/
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cotton wool” sits in English frequency

cotton wool falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for cotton wool is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈkɒtən wʊl/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

No misspelling variants are generated for cotton wool in our index, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct English form is cotton wool, spelled C-O-T-T-O-N- -W-O-O-L.

Definition

  1. 1
    Raw fibers of cotton before being processed.
  2. 2
    Soft, absorbent cotton for medical or cosmetic use, protective padding, etc.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "cotton wool"?
"cotton wool" is spelled C-O-T-T-O-N- -W-O-O-L. The IPA pronunciation is /ˈkɒtən wʊl/.
What does "cotton wool" mean?
As a noun, "cotton wool" means: Raw fibers of cotton before being processed.
How do you pronounce "cotton wool"?
The IPA (International Phonetic Alphabet) transcription for "cotton wool" is /ˈkɒtən wʊl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cotton wool" come from?
"cotton wool" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 “cotton wool”

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

  • The one correct English spelling is C-O-T-T-O-N- -W-O-O-L - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkɒtən wʊl/ (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
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