cotton wool

/ˈkɒtən wʊl/

//ˈkɒtən wʊl// noun

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

The verdict

“cotton wool” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Raw fibers of cotton before being processed.

Corpus desk

Index EN-cotton-wool · cotton wool · English

cotton wool · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

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

Long-tail rank of “cotton wool” in English

cotton woolranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

cotton wool is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈkɒtən wʊl/. Rarity is why readers land here mid-draft. 2 senses are on record.

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.

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

Source: FrequencyWords open word-frequency list