The Collaborative International Dictionary of English v.0.48:

Mail \Mail\ (m[=a]l), n.
   A spot. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mail \Mail\, n. [F. maille, OF. also maaille, LL. medalia. See
   Medal.]
   1. A small piece of money; especially, an English silver
      half-penny of the time of Henry V. [Obs.] [Written also
      maile, and maille.]
      [1913 Webster]

   2. Rent; tribute. [Obs., except in certain compounds and
      phrases, as blackmail, mails and duties, etc.]
      [1913 Webster]

   Mail and duties (Scots Law), the rents of an estate, in
      whatever form paid.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mail \Mail\ (m[=a]l), n. [OE. maile, maille, F. maille a ring of
   mail, mesh, network, a coat of mail, fr. L. macula spot, a
   mesh of a net. Cf. Macle, Macula, Mascle.]
   1. A flexible fabric made of metal rings interlinked. It was
      used especially for defensive armor. --Chaucer.
      [1913 Webster]

   Chain mail, Coat of mail. See under Chain, and Coat.
      [1913 Webster]

   2. Hence generally, armor, or any defensive covering.
      [1913 Webster]

   3. (Naut.) A contrivance of interlinked rings, for rubbing
      off the loose hemp on lines and white cordage.
      [1913 Webster]

   4. (Zool.) Any hard protective covering of an animal, as the
      scales and plates of reptiles, shell of a lobster, etc.
      [1913 Webster]

            We . . . strip the lobster of his scarlet mail.
                                                  --Gay.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mail \Mail\, v. t.
   1. To arm with mail.
      [1913 Webster]

   2. To pinion. [Obs.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mail \Mail\ (m[=a]l), n. [OE. male bag, OF. male, F. malle bag,
   trunk, mail, OHG. malaha, malha, wallet; akin to D. maal,
   male; cf. Gael. & Ir. mala, Gr. molgo`s hide, skin.]
   1. A bag; a wallet. [Obs.] --Chaucer.
      [1913 Webster]

   2. The bag or bags with the letters, papers, or other matter
      contained therein, conveyed under public authority from
      one post office to another; the whole system of appliances
      used by government in the conveyance and delivery of mail
      matter.
      [1913 Webster]

            There is a mail come in to-day, with letters dated
            Hague.                                --Tatler.
      [1913 Webster]

   3. That which comes in the mail; letters, etc., received
      through the post office.
      [1913 Webster]

   4. A trunk, box, or bag, in which clothing, etc., may be
      carried. [Obs.] --Sir W. Scott.
      [1913 Webster]

   Mail catcher, an iron rod, or other contrivance, attached
      to a railroad car for catching a mail bag while the train
      is in motion.

   Mail guard, an officer whose duty it is to guard the public
      mails. [Eng.]

   Mail train, a railroad train carrying the mail.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mail \Mail\, v. t. [imp. & p. p. Mailed; p. pr. & vb. n.
   Mailing.]
   To deliver into the custody of the postoffice officials, or
   place in a government letter box, for transmission by mail;
   to post; as, to mail a letter. [U. S.]
   [1913 Webster]

   Note: In the United States to mail and to post are both in
         common use; as, to mail or post a letter. In England
         post is the commoner usage.
         [1913 Webster]

The Free On-line Dictionary of Computing (17 December 2009):

mail

    1. electronic mail.

   2. The Berkeley Unix program for composing and reading
   electronic mail.  It normally uses sendmail to handle
   delivery.

   Unix manual page: mail(1)

   (1997-12-03)


Moby Thesaurus II by Grady Ward, 1.0:

105 Moby Thesaurus words for "mail":
   PP, RD, RFD, air-express, airfreight, airmail, armature, armor,
   armor plate, body armor, book post, buckler, bulletproof vest,
   carrier, carrier pigeon, chain armor, chain mail, chitin,
   coat of mail, consign, correspondence, cortex, covert, direct mail,
   direct-mail selling, dispatch, drop a letter, elytron, embark,
   episperm, expedite, export, express, feather, feathers, forward,
   fourth-class mail, frank, freight, habergeon, hackle,
   halfpenny post, harness, hauberk, homer, homing pigeon, junk mail,
   letter post, letters, lorica, lorication, mail car, mail coach,
   mail packet, mail train, mail truck, mail-order selling, mailer,
   mailing list, mailplane, needles, newspaper post, packet boat,
   panoply, parcel post, pericarp, pigeon post, plate, plate armor,
   plumage, post, post boat, post car, post coach, post day,
   post-horse, post-office car, poster, protective covering,
   railway mail car, registered mail, remit, rural delivery,
   rural free delivery, scute, scutum, sea mail, seapost, send,
   send away, send forth, send off, shell, shield, ship,
   special delivery, special handling, speculum, spines,
   suit of armor, surface mail, test, testa, thick skin, transmit