ADJ. papal, personal, royal, special | diplomatic, peace | UN/United Nations | American, British, etc.
VERB + ENVOY be, serve as | appoint (sb as) The government has not yet appointed an envoy to the area. | dispatch, send A special peace envoy was sent to the area.
PREP. ~ from a special envoy from the American president | ~ to He served as envoy to the French government.