The Collaborative International Dictionary of English v.0.48:

Envoy \En"voy\, n. [F. envoy['e] envoy, fr. envoyer to send;
   pref. en- (L. in) + voie way, L. via: cf. F. envoi an envoy
   (in sense 2). See Voyage, and cf. Invoice.]
   1. One dispatched upon an errand or mission; a messenger;
      esp., a person deputed by a sovereign or a government to
      negotiate a treaty, or transact other business, with a
      foreign sovereign or government; a minister accredited to
      a foreign government. An envoy's rank is below that of an
      ambassador.
      [1913 Webster]

   2. [F. envoi, fr. envoyer to send.] An explanatory or
      commendatory postscript to a poem, essay, or book; -- also
      in the French from, l'envoi.
      [1913 Webster]

            The envoy of a ballad is the "sending" of it forth.
                                                  --Skeat.
      [1913 Webster]

WordNet (r) 3.0 (2006):

envoy
    n 1: a diplomat having less authority than an ambassador [syn:
         envoy, envoy extraordinary, minister plenipotentiary]
    2: someone sent on a mission to represent the interests of
       someone else [syn: emissary, envoy]
    3: a brief stanza concluding certain forms of poetry [syn:
       envoy, envoi]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "envoy":
   agent, ambassador, ambassadress, apostolic delegate, attache,
   bearer, career diplomat, carrier, chancellor, charge,
   commercial attache, commissar, commissary, commissionaire,
   commissioner, consul, consul general, consular agent, councillor,
   courier, delegate, diplomat, diplomatic, diplomatic agent,
   diplomatist, emissary, envoy extraordinary,
   foreign service officer, herald, internuncio, legate, messenger,
   military attache, minister, minister plenipotentiary,
   minister resident, nuncio, plenipotentiary, representative,
   resident, secretary, secretary of legation, vice-consul,
   vice-legate



The Free On-line Dictionary of Computing (30 December 2018):

Envoy

   Motorola's integrated personal wireless communicator.  Envoy
   is a personal digital assistant which incorporates two-way
   wireless and wireline communication.  It was announced on 7
   March 1994 and released in the third quarter of 1994.  It runs
   Genral Magic's Magic Cap operating system and
   Telescript(TM) communications language on Motorola's Dragon
   chip set.  This includes the highly integrated Motorola
   68349 processor and a special purpose application specific
   integrated circuit (ASIC) referred to as Astro.  This chip
   set was designed specifically for Magic Cap and
   Telescript.

   A user can write on the Envoy communicator with the
   accompanying stylus or a finger, to type and select or move
   objects on its screen.  An on-screen keyboard can be used to
   input information, draw or write personal notations, or send
   handwritten messages and faxes.

   Envoy can send a wireless message to another Envoy, PC or
   fax; broadcast a message to a group, with each member of that
   group receiving the message in their preferred format; gather
   information based on your requirements; schedule a meeting and
   automatically invite attendees; screen, route and organise
   messages; send a business card to another Envoy across a
   conference room table; access real-time scheduling and pricing
   information for US airline flights, then order tickets via fax
   or electronic mail; keep track of contacts through an
   address book; receive daily news summaries and stock
   information; capture, organize and review business and
   personal expenses on-the-go; gather, edit and analyze
   information in spreadsheets and graphs compatible with Lotus
   1-2-3 and Excel; shop in an electronic mall.

   (http://motorola.com/MIMS/WDG/Technology/Envoy/).

   [Was it released in Q3 '94?]

   (1995-01-18)


Bouvier's Law Dictionary, Revised 6th Ed (1856):

ENVOY, international law. In diplomatic language, an envoy is a minister of
the second rank, on whom his sovereign or government has conferred a degree
of dignity and respectability, which, without being on a level with an
ambassador, immediately follows, and among ministers, yields the preeminence
to him alone.
     2. Envoys are either ordinary or extraordinary; by custom the latter is
held in greater consideration. Vattel, liv. 4, c. 6, Sec. 72.