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Definition of collusion
collusion
/kəˈluː.ʒən/
col · lu · sion
Adverb:collusively
•Plural:collusions
•Adjective:collusive
collusion Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Top 10k
Syllables
3
collusion Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
Secret or illegal cooperation or conspiracy between two or more parties, especially in order to cheat, deceive, or defraud others.
Example
"The regulatory agency launched an investigation into allegations of price-fixing and collusion among the rival airlines."
Synonyms
View all synonyms for collusionWord Nuance & Usage
While often used interchangeably with 'conspiracy' in casual speech, 'collusion' is not a specific statutory crime in most jurisdictions (except in antitrust law), whereas 'conspiracy' is a formal legal offense.
• Rhymes for collusion
Word Origin & Etymology
Borrowed in the late 14th century from Anglo-French and Latin 'collusionem', derived from 'colludere', meaning 'to play together' or 'to act in secret agreement' (from 'com-' meaning 'together' and 'ludere' meaning 'to play').
Cite this Entry
Wordmom. (2026). Definition of Collusion. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/collusion