collusion collumelliaceous • collusive · · · Info · Definitions · Synonyms · Characters · · collusion · · Text Latin · · Script 9 · · Length Definitions · · · (noun) secret agreement. · · Noun Definition 1 (noun) agreement on a secret plot. Synonyms: connivance. · · Noun Definition 2 Synonyms · · · connivance · · Synonym 1 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075