envoy-n; 3 Senses

Sense Number 1: an official diplomat representing a government

Commentary: ENVOY[+person][+diplomat][+official][+government] [+relation][+role][+representative][+formal] [+quality][+rank][+official][+diplomatic]
NOTE: an envoy is ranked lower than an ambassador

Her father was an envoy to England before he became ambassador to France.
The foreign minister is meeting with several ambassadors and envoys this afternoon.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: any messenger on a mission to represent another

Commentary: ENVOY[+person][+messenger][+deployed][+mission] [+relation][+role][+representative][+impromptu]
NOTE: often implies a one-time mission, unlike the permanent job of Sense 1

Mary volunteered to be the envoy of the dog owners at the next town meeting.
The manager sent some of his staff as envoys to the client to try to smooth over some misunderstandings about the project.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: a brief concluding stanza of certain poetic forms

Commentary: ENVOY[+structure][+poetic][+stanza][+brief][+concluding]

His poems usually end in an envoy that is a rhymed couplet.

WordNet 3.0 Sense Numbers: 3