noun
liaison
LEE-uh-zahn/ˈliːəzɑːn/
A working connection enabling cooperation between separate groups.
The mediator maintains a liaison that helps the separate teams cooperate.

Etymology
Latin ligatio meant a binding: the central image is joining things together. In military use, liaison came to mean cooperation between branches or allies, connecting that image to communication between groups.
In context
We had been doing some liaison work with VisitScotland
liaison with the LORT on our collective bargaining agreements
More examples
- Better liaison between the teams prevents costly delays.
- She serves as a liaison between the engineers and customers.
- Each office appoints two liaisons to work with outside agencies.
Forms
liaison · liaisons
Similar words
- coordination
- Focuses on organizing joint work rather than maintaining a connection.
- link
- Names a broader connection that need not involve active cooperation.