1. plural of intergroup; groups or organizations that exist or operate between or among other groups
Usage: typically used in organizational or social contexts
2. in Alcoholics Anonymous and similar 12-step programs, committees or councils that coordinate activities between local groups
Usage: specialized usage in recovery communities

Examples

• The intergroups met to discuss shared resources and best practices.
• Several intergroups collaborated on the regional conference.
• The AA intergroups coordinated the annual convention.
• Intergroups help facilitate communication between individual groups.
• Representatives from different intergroups gathered to address common challenges.