take sides

• Audio (General Australian):

  (file)

take sides (third-person singular simple present takes sides, present participle taking sides, simple past took sides, past participle taken sides)

1. (idiomatic) To ally oneself with a given opinion, agenda or group; to support one side or viewpoint in a competition or confrontation.

   Synonyms: pick sides, choose sides

   I am not going to argue with you, and I am not going to take sides in this discussion.

• side with