1. a meeting or session in which information or instructions are given
2. the information or instructions given in such a meeting

Examples

• The general held a briefing for all officers before the mission.
• Reporters attended the daily press briefing at the White House.
• The pilot received a weather briefing before takeoff.
• She gave us a quick briefing on the new safety procedures.
• The briefing contained classified information about the operation.
• All employees must attend the mandatory briefing on Monday.
• The briefing lasted only fifteen minutes but covered all essential points.