1. in a way that involves or affects multiple parties, nations, or sides equally
Usage: commonly used in diplomatic and political contexts

Examples

• The countries agreed to address the climate crisis multilaterally through the United Nations.
• Trade disputes were resolved multilaterally rather than through individual negotiations.
• The organization decided to act multilaterally to ensure all member states had a voice.
• Multilaterally, the nations committed to reducing carbon emissions by 2030.
• The conflict was addressed multilaterally with input from multiple international bodies.