noun
( -s )
Etymology: from gerund of brief (III)
1. : the action or an instance of briefing : the process of being briefed
at the end of each day authorized spokesmen … held briefings attended by hundreds of newspaper and radio reporters — Clifton Daniel
at a briefing session, pilots and navigators … get data — New York Times
2. : the instructions or information imparted at a briefing
do what the briefing calls for