cooperation

/kəʊˌɒp.əˈɹeɪ.ʃən/

//kəʊˌɒp.əˈɹeɪ.ʃən// noun

By · According to Wiktionary data (CC BY-SA) ·

"cooperation" is a 11-letter English headword indexed on PlainSpell.

The verdict

“cooperation” has 16 generated spelling variants in the English index at frequency #4,292. The variants make it a useful spelling check.

#4,292
frequency rank, English
5,599
“C” headwords
16
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act of cooperating.

Corpus desk

Index EN-cooperation · cooperation · English

cooperation · rank #4,292 · 16 variants · 2 confusables

  • FREQ-COMMON #4,292
  • LEN-MEGA 11 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 16 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH craft

Nearest frequency peer: craft (+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 “cooperation”

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

corpus weight

What this shows “cooperation” 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).

cooperation vs corporation
82% similar
cooperation vs cooperative
82% similar

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

Key facts for cooperation
PropertyValue
Headwordcooperation
LanguageEnglish
Part of speechNoun
IPA/kəʊˌɒp.əˈɹeɪ.ʃən/
Letters11
Frequency rank#4,292
Misspellings tracked16
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “cooperation”

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).cooperationlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “craft” (#4,293), “collective” (#4,290), “darkness” (#4,294). Among 5,599 “C” headwords, “cooperation” is #4,292. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around cooperation (IPA /kəʊˌɒp.əˈɹeɪ.ʃən/), anoun. Corpus frequency is #4,292 among 5,599 “C” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for cooperation, with forms such as "ccooperation", "cooepration", and "coopeartion". 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 2 confusable-pair relationships, "corporation", "cooperative", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: First attested in 1620–1630. Borrowed from French cooperation, from Late Latin cooperātiō. By surface analysis, co- + operation or cooperate + -ion. The correct English form is cooperation, spelled C-O-O-P-E-R-A-T-I-O-N.

Definition

  1. 1
    The act of cooperating.
  2. 2
    Active help from a person, organization, etc., such as an orderly sharing of space or resources.
  3. 3
    Association for mutual benefit, such as for purposes of production or purchase.

Recorded use

Wiktionary example

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

  1. South Korea is seeking cooperation from China to produce artificial rain to help fight increasing pollution.

Etymology

First attested in 1620–1630. Borrowed from French cooperation, from Late Latin cooperātiō. By surface analysis, co- + operation or cooperate + -ion.

Antonyms

competition

This word in other languages

cooperación(Español)coopération(Français)Zusammenarbeit(Deutsch)

Common misspellings

Also misspelled as:

  • ccooperation
  • cooepration
  • coopeartion
  • cooperaiton
  • cooperasion
  • cooperatino
  • cooperationn
  • cooperatoin
  • cooperattion
  • cooperration
  • coopertaion
  • coopperation
  • coopreation
  • coperation
  • copoeration
  • ocoperation

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of cooperation - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ccooperation1cooepration2coopeartion2cooperaiton2cooperasion1cooperatino2cooperationn1cooperatoin2
Edit distance from "cooperation"

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 "cooperation"?
"cooperation" is spelled C-O-O-P-E-R-A-T-I-O-N. The IPA pronunciation is /kəʊˌɒp.əˈɹeɪ.ʃən/.
What does "cooperation" mean?
As a noun, "cooperation" means: The act of cooperating.
What words are commonly confused with "cooperation"?
"cooperation" is commonly confused with "corporation", "cooperative". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "cooperation"?
The IPA (International Phonetic Alphabet) transcription for "cooperation" is /kəʊˌɒp.əˈɹeɪ.ʃən/. 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 "cooperation"?
First attested in 1620–1630. Borrowed from French cooperation, from Late Latin cooperātiō. By surface analysis, co- + operation or cooperate + -ion. 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 "cooperation", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 11 letters (nearest by frequency rank).

involvement#4,312investigate#4,243celebration#4,354documentary#4,229

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

intellectual16 variantsprotecting16 variantscertificate16 variantsconcerning16 variants

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

Source: FrequencyWords open word-frequency list