INFORM

[verb] - to tell (someone) about particular factsThe name of the dead man will not be released until his relatives have been informed. [T]Why wasn't I informed about this earlier? [T]Walters was not properly informed of the reasons for her arrest. [T]I informed my boss (that) I was going to be away next week. [T + object + (that) clause]If you inform (on/against someone else) you give the police information, usually secretly, about that person, showing that he or she has done something wrong.The terrorists said that anyone caught informing (on them) would be killed.