collusion
B1CEFR level
50/100Rarity: uncommon
TechnicalRegister
Law noun
A secret agreement to deceive or defraud.
Regulators alleged collusion to fix prices.
Business noun
Secret cooperation between firms to limit competition, typically by coordinating prices or output.
Regulators fined the suppliers heavily after uncovering years of collusion over bid prices.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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