/di ploh"meuh see/ , n.
1. the conduct by government officials of negotiations and other relations between nations.
2. the art or science of conducting such negotiations.
3. skill in managing negotiations, handling people, etc., so that there is little or no ill will; tact: Seating one's dinner guests often calls for considerable diplomacy.
[ 1790-1800; diplomatie (with t pronounced as s ), equiv. to diplomate DIPLOMAT + -ie -Y 3 ]