The Collaborative International Dictionary of English v.0.48:

Garbage \Gar"bage\ (?; 48), n. [OE. also garbash, perh. orig.,
   that which is purged or cleansed away; cf. OF. garber to make
   fine, neat, OHG. garawan to make ready, prepare, akin to E.
   garb dress; or perh. for garbleage, fr. garble; or cf. OF.
   garbage tax on sheaves, E. garb sheaf.]
   Offal, as the bowels of an animal or fish; refuse animal or
   vegetable matter from a kitchen; hence, anything worthless,
   disgusting, or loathsome. --Grainger.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Garbage \Gar"bage\, v. t.
   To strip of the bowels; to clean. "Pilchards . . . are
   garbaged." --Holland.
   [1913 Webster]

WordNet (r) 3.0 (2006):

garbage
    n 1: food that is discarded (as from a kitchen) [syn: garbage,
         refuse, food waste, scraps]
    2: a worthless message [syn: drivel, garbage]
    3: a receptacle where waste can be discarded; "she tossed the
       moldy bread into the garbage"

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "garbage":
   bilge, bilgewater, bones, carrion, chaff, crap, culm, deadwood,
   debris, detritus, dishwater, ditchwater, draff, dregs, dross, dust,
   filings, filth, gash, hogwash, husks, junk, kelter, leavings, lees,
   litter, muck, offal, offscourings, orts, parings, potsherds, rags,
   raspings, refuse, riffraff, rubbish, rubble, scourings, scrap iron,
   scraps, scum, scurf, sewage, sewerage, shards, shavings, slack,
   slag, slop, slops, slough, stubble, sweepings, swill, tares, trash,
   wastage, waste, waste matter, wastepaper, weeds