The Collaborative International Dictionary of English v.0.48:

Freezer \Freez"er\, n.
   One who, or that which, cools or freezes, as a refrigerator,
   or the tub and can used in the process of freezing ice cream.
   [1913 Webster]

WordNet (r) 3.0 (2006):

freezer
    n 1: electric refrigerator (trade name Deepfreeze) in which food
         is frozen and stored for long periods of time [syn: deep-
         freeze, Deepfreeze, deep freezer, freezer]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "freezer":
   big house, bridewell, brig, calaboose, can, clink, cooler, coop,
   deep freeze, deep-freezer, freezing machine, hoosegow, ice machine,
   ice plant, ice-cream freezer, ice-cube machine, icehouse, jail,
   refrigerating engine, refrigerating machine, sharp-freezer