1. A report that gives information or a warning about something: William heard a traffic advisory stating that heavy snow was expected tomorrow morning.
2. Etymology: formed from English advise, "counsel, recommend" + -ory, "relating to"; said to be an adaptation of Late Latin advisorius, from Late Latin advisor.

Having the power or right to make suggestions about what should be done: George went to the meeting of the advisory panel to get some guidance as to how the new project can be successfully accomplished.