collusionnoun · Level 1 SAT1a conspiracy, a secret agreementInvestigators uncovered collusion between two rival firms to fix prices across the market.ModuleLevel 1Registeracademic, argument, common, literaryCollectionCollection 021SAT Core planAlso in Collection 021anomaly, amorphous, analogous, ubiquitous, accuracy, buttress, amalgamate, amenable and 1 more