Liaison
Pronunciation : Li`ai`son"
Part of Speech : n.
Etymology : [F., fr. L. ligatio, fr. ligare to bind. See Ligature, and cf. Ligation.]
Definition : Defn: A union, or bond of union; an intimacy; especially, an illicit intimacy between a man and a woman.
Source : Webster's Unabridged Dictionary, 1913