Interconnection (noun)

1. The act of connecting or the state of being connected, especially between different systems or components.
2. A connection or links between different things.

Origin:

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

Examples:

1. The interconnection between different computer networks allowed for easier communication.
2. The interconnection of the city's subway system made it easier to travel.
3. The interconnection between the two countries was strengthened by trade agreements.
4. The interconnection between different departments was essential for efficient operation.
5. The interconnection of the global economy has led to increased competition.