advise (one) of(redirected from advise them of)
advise (one) of
To share insight or recommendations on a particular topic with a person or group. My lawyer advised me of how to handle my mother's estate. Patrick advised her of the possible issues she should expect during the negotiation process.
advise someone of something
to inform someone of specific facts or some other information. I hope you will advise Larry of the details of the proposal.