cossie

noun

"cossie" is a 6-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A swimming costume.

Corpus desk

Index EN-cossie · cossie · English

cossie · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-3 3 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 cossie
PropertyValue
Headwordcossie
LanguageEnglish
Part of speechNoun
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “cossie” in English

cossiefalls 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.

Rare enough to double-check

cossie is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A swimming costume.".

Our edit-distance generator produced no likely misspellings for cossie, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From costume + -ie (“diminutive suffix”). The correct English form is cossie, spelled C-O-S-S-I-E.

Definition

  1. 1
    A swimming costume.

Recorded use

Wiktionary examples

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

  1. “Let's not bother with cossies Jack. Let′s pretend it′s years ago.” She remembered the times they had swum at Eleni beach totally naked, the moon and stars lighting the little waves as they rolled slowly to shore.
  2. I struck off boldly, but soon found myself unaccountably labouring. The reason became abundantly clear when I stood up, clad only in two three-foot-long shoulder straps, with two stone of waterlogged cossie round my ankles.

Etymology

From costume + -ie (“diminutive suffix”).

Synonyms

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 "cossie"?
"cossie" is spelled C-O-S-S-I-E.
What does "cossie" mean?
As a noun, "cossie" means: A swimming costume.
What is the origin of the word "cossie"?
From costume + -ie (“diminutive suffix”). 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.

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

Source: FrequencyWords open word-frequency list