Meaning of “dissociate” - Learner’s Dictionary

dissociate

verb uk us /dɪˈsəʊʃieɪt/
dissociate yourself from sb/sth

to say that you do not have any connection or involvement with someone or something:

He's trying to dissociate himself from his former friends.

(Definition of “dissociate” from the Cambridge Learner’s Dictionary © Cambridge University Press)