Intergovernmental (adjective)

1. Relating to or involving interaction between different government organizations or agencies.
2. Relating to or involving communication between different government organizations or agencies.

Origin:

Late 19th century: from inter- "between" + governmental.

Examples:

1. The intergovernmental meeting was held to discuss ways to improve cross-border cooperation.
2. Intergovernmental cooperation is essential to addressing global issues.
3. The intergovernmental agreement was signed to ensure smooth coordination between the two countries.
4. The intergovernmental organization aims to promote peace and security.
5. Intergovernmental relations can be complex, especially in the case of conflicting interests.