collude

When you collude with someone you secretly plot together to do something bad. You might collude with your twin sister to find out where all the birthday presents are hidden.

The word collude entered English in the 16th century from the Latin word colludere, meaning “have a secret agreement,” a combination of col-, meaning “together,” and ludere, meaning “to play.” When you collude with someone, it's like you’re playing together on the same team for the purpose of getting something you want, typically something illegal or harmful. Companies may collude to keep prices high, or politicians may collude to keep damaging information secret.

Definitions of collude
1

v act in unison or agreement and in secret towards a deceitful or illegal purpose

Synonyms:
conspire
Type of:
interact
act together or towards others or with others

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.