Liaison

Liaison in general means:

1. Communication between two or more groups.
2. Co-operation, working together.

but may refer to:

• Affair, an unfaithful or adulterous sexual relationship
• Air Alliance, a Canadian Summit airline whose call sign was "Liaison'
• Collaboration, people working together
• Liaison aircraft, a small aircraft used by military forces
• Liaison Committee, a topical committee of the British House of Commons
• Liaison Committee (House of Lords), a select committee of the United Kingdom's House of Lords
• Liaison Committee on Medical Education
• Liaison (French), the pronunciation of a word-final consonant due to a following vowel sound in French
• Liaison job, a job that links two or more specialties
• Liaison (kitchen), a mix of 3 parts yolk and 1 part cream used by soups
• Liaison officer, a military officer who coordinates different forces or national units usually at staff level
• Liaison pilot, a World War II pilot who flew liaison aircraft
• Liaison psychiatry, psychiatry that specialises in the interface between medicine and psychiatry
• "Liaisons" (Desperate Housewives), an episode of the American drama series Desperate Housewives
• Liaisons (song), a song from the 1973 musical "A Little Night Music" by Stephen Sondheim
• "Liaisons" (Star Trek: The Next Generation), an episode of Star Trek: The Next Generation