NOUN (1)

1. a small light typewriter; usually with a case in which it can be carried;


ADJECTIVE (2)

1. easily or conveniently transported;
- Example: "a portable television set"

2. of a motor designed to be attached to the outside of a boat's hull;
- Example: "a portable outboard motor"

The Collaborative International Dictionary of English v.0.48:

Portable \Port"a*ble\, a. [L. portabilis, fr. portare to carry:
   cf. F. portable. See Port demeanor.]
   1. Capable of being borne or carried; easily transported;
      conveyed without difficulty; as, a portable bed, desk,
      engine. --South.
      [1913 Webster]

   2. Possible to be endured; supportable. [Obs.]
      [1913 Webster]

            How light and portable my pain seems now! --Shak.
      [1913 Webster]

   Portable forge. See under Forge.

   Portable steam engine. See under Steam engine.
      [1913 Webster]

The Devil's Dictionary (1881-1906):

PORTABLE, adj.  Exposed to a mutable ownership through vicissitudes of
possession.

    His light estate, if neither he did make it
    Nor yet its former guardian forsake it,
    Is portable improperly, I take it.
                                                        Worgum Slupsky


Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "portable":
   assignable, carriable, communicable, compact, conductive,
   consignable, contagious, convenient, conveyable, expressable,
   handy, impartable, interchangeable, light, lightweight, little,
   mailable, manageable, metathetic, movable, pocket, pocket-sized,
   portative, removable, small, transferable, transfusable,
   transmissible, transmissive, transmittable, transportable,
   transportative, transposable, vest-pocket, wieldy