'liaison' definitions:

Definition of 'liaison'

From: WordNet
noun
A usually secretive or illicit sexual relationship [syn: affair, affaire, intimacy, liaison, involvement, amour]
noun
A channel for communication between groups; "he provided a liaison with the guerrillas" [syn: liaison, link, contact, inter-group communication]

Definition of 'liaison'

From: GCIDE
  • liaison \li`ai`son"\ (l[-e]`[asl]`z[^o]N"), n. [F., fr. L. ligatio, fr. ligare to bind. See Ligature, and cf. Ligation.]
  • 1. A union, or bond of union; an intimacy; an interrelationship. [1913 Webster]
  • 2. Specifically, An illicit sexual relation between a man and a woman; a sexual afffair. [1913 Webster]
  • 3. Specifically: A process of communication between parts of an organization or between two organizations acting together for a common purpose. [PJC]
  • 4. Hence: A person whose function it is to maintain such communication. [PJC]
  • 5. (Phonetics) A pronunciation of a consonant sound that would be otherwise silent, such as the final consonant of certain French words, when the following word begins with a vowel sound. [PJC] Liane