a relationship between two organizations or different departments in an organization, involving the exchange of information or ideas

a person whose job is to make sure there is a good relationship between two groups or organizations

the White House liaison to organized labor

We hired someone as customer liaison.

a secret sexual relationship, especially if one or both partners are already in a relationship with somebody else

He finally admitted to several sexual liaisons.

She was having a romantic liaison with her husband's best friend.

LEARNit Dictionary