The Collaborative International Dictionary of English v.0.48:

compact disk player \com"pact disk` play"er\(k[o^]m"p[a^]kt
   d[i^]sk` pl[=a]"[~e]r), n.
   an electronic device containing a laser, used to read or play
   back the data on a compact disk. The term is usually used for
   the type of device used to play music recordings. That used
   for data storgage n coputer applications is usually called a
   CD drive. Called also CD player and informally, CD.

   Syn: CD player.
        [PJC]

The Collaborative International Dictionary of English v.0.48:

Cd \Cd\ n.
   1. the chemical suymbol for cadmium, a metallic element of
      atomic number 48.

   Syn: cadmium.
        [WordNet 1.5]

   2. the abbreviation for the candela, the basic unit of
      luminous intensity adopted under the System International
      d'Unites. [abbr.]

   Syn: candle, candela, standard candle.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

CD \CD\ n.
   1. an acronym for compact disk, a disk-shaped recording of
      binary data that is smaller than a phonograph record, and
      is recorded and played back by a compact disk player, an
      electronic device containing a laser. The term is also
      used generically to refer to the medium as a data storage
      medium.

   Syn: compact disc, compact disk.
        [WordNet 1.5 +PJC]

   2. a compact disk player. [informal]
      [PJC]

   3. an acronym for certificate of deposit, a debt instrument
      issued by a bank for a fixed time period, usually paying
      interest.

   Syn: certificate of deposit.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

cd
    adj 1: being one hundred more than three hundred [syn: four
           hundred, 400, cd]
    n 1: a soft bluish-white ductile malleable toxic bivalent
         metallic element; occurs in association with zinc ores
         [syn: cadmium, Cd, atomic number 48]
    2: the basic unit of luminous intensity adopted under the
       Systeme International d'Unites; equal to 1/60 of the luminous
       intensity per square centimeter of a black body radiating at
       the temperature of 2,046 degrees Kelvin [syn: candle,
       candela, cd, standard candle]
    3: a debt instrument issued by a bank; usually pays interest
       [syn: certificate of deposit, CD]
    4: a digitally encoded recording on an optical disk that is
       smaller than a phonograph record; played back by a laser
       [syn: compact disk, compact disc, CD]

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

CD
       Carrier Detect (MODEM, RS-232)


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

CD
       Committee Draft (ISO)


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

CD
       Change Directory (DOS, Unix, OS/2)


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

CD
       Compact Disk (CD)


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

cd

   1.  change directory.

   2.  The country code for the Democratic Republic
   of the Congo (formerly Zaire, zr).

   (1999-01-27)


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

Compact Disc
CD

    (CD) (Not "disk", this spelling is part of the
   standard).

   A 4.72 inch disc developed by Sony and Philips that can
   store, on the same disc, still and/or moving images in
   monochrome and/or color; stereo or two separate sound tracks
   integrated with and/or separate from the images; and digital
   program and information files.

   The same fabrication process is used to make both audio CDs
   and CD-ROMs for storing computer data, the only difference
   is in the device used to read the CD (the player or drive).

   CD Information Center
   (http://cd-info.com/cd-info/CDInfoCenter.html).

   (1999-06-23)