The Collaborative International Dictionary of English v.0.48:

Mime \Mime\, n. [L. mimus, Gr. ?, akin to ? to imitate, to
   mimic: cf. F. mime. Cf. Mimosa.]
   1. A kind of drama in which real persons and events were
      generally represented in a ridiculous manner; an ancient
      Greek or Roman form of farce.
      [1913 Webster +PJC]

   2. An actor in such representations.
      [1913 Webster]

   3. The art of representing actions, events, situations, or
      stories solely by gestures and body movements, without
      speaking; pantomime[3].
      [PJC]

   4. An actor who performs or specializes in mime[3]; an actor
      who communicates entirely by gesture and facial
      expression; a pantomime[2]; a pantomimist; a mimer.

   Syn: mummer, pantomimer, pantomimist.
        [PJC]

   5. A mimic.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Mime \Mime\, v. i.
   To mimic. [Obs.] -- Mim"er, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

mime
    n 1: an actor who communicates entirely by gesture and facial
         expression [syn: mime, mimer, mummer, pantomimer,
         pantomimist]
    2: a performance using gestures and body movements without words
       [syn: mime, pantomime, dumb show]
    v 1: imitate (a person or manner), especially for satirical
         effect; "The actor mimicked the President very accurately"
         [syn: mimic, mime]
    2: act out without words but with gestures and bodily movements
       only; "The acting students mimed eating an apple" [syn:
       mime, pantomime]

Moby Thesaurus II by Grady Ward, 1.0:

167 Moby Thesaurus words for "mime":
   Roscius, Thalia, act, act a part, act as, act as foil, act out,
   actor, actress, antagonist, ape, appear, arlequinade, bad guy,
   barnstorm, barnstormer, beckon, black comedy, broad comedy,
   burlesque, burletta, camp, character, character actor,
   character man, character woman, child actor, come out,
   comedie bouffe, comedie larmoyante, comedie rosse, comedietta,
   comedy, comedy ballet, comedy of humors, comedy of ideas,
   comedy of intrigue, comedy of manners, comedy of situation,
   comedy relief, comic muse, comic opera, comic relief, conformist,
   copier, copy, copycat, copyist, counterfeiter, cuckoo, dark comedy,
   diseur, diseuse, dissembler, dissimulator, do, domestic comedy,
   dramatizer, echo, echoer, echoist, emote, emotionalize, enact,
   exode, faker, farce, farce comedy, feeder, foil, forger,
   genteel comedy, gesticulate, gesture, get top billing,
   harlequinade, heavy, high camp, histrio, histrion, hit off,
   hit off on, hypocrite, imitator, impersonate, impersonator,
   impostor, ingenue, juvenile, light comedy, low camp, low comedy,
   masquerade as, matinee idol, mimer, mimic, mimicker, mock, mocker,
   mockingbird, monkey, monologist, motion, motion to, mummer,
   musical, musical comedy, opera buffa, pantomime, pantomimist,
   parrot, pass for, patter, perform, personate, phony, plagiarist,
   play, play a part, play the lead, playact, playactor, player,
   poll-parrot, polly, polly-parrot, pose as, poseur, pretend to be,
   protean actor, raw comedy, realistic comedy, reciter, register,
   romantic comedy, satyr play, saw the air, sentimental comedy,
   sheep, shrug, shrug the shoulders, simulator, situation comedy,
   sketch, slapstick, slapstick comedy, soubrette, stage performer,
   stage player, star, steal the show, stooge, straight man, stroller,
   strolling player, take off, take off on, theatrical, thespian,
   tragicomedy, tread the boards, troupe, trouper, upstage,
   utility man, villain, wave the arms



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MIME
       Multipurpose Internet Mail Extensions (RFC
2045/2046/2047/2048/2049, IETF)


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

Multipurpose Internet Mail Extensions
MIME

    (MIME) A standard for multi-part,
   multimedia electronic mail messages and web
   hypertext documents on the Internet.  MIME provides the
   ability to transfer non-textual data, such as graphics,
   audio and fax.  It is defined in RFC 2045, RFC 2046,
   RFC 2047, RFC 2048, RFC 2049, and BCP0013.  It uses
   mimencode to encode binary data into base 64 using a
   subset of ASCII.

   FAQ

(http://cis.ohio-state.edu/hypertext/faq/usenet/mail/mime-faq/top.html).

   (1995-04-04)