1. occurring or taking place before a summit meeting or conference
Usage: commonly used in diplomatic and political contexts

1. a meeting or event held in preparation for a major summit conference
Usage: often used in plural form or as a modifier in compound phrases

Examples

• The presummit negotiations helped establish common ground between the two nations.
• Officials held presummit talks to draft the agenda for the international conference.
• A presummit was scheduled to address key disagreements before the main event.
• The presummit discussions focused on trade and security issues.
• Diplomats attended the presummit to prepare their countries' positions.
• Several presummits were organized in the weeks leading up to the G20 meeting.