The Collaborative International Dictionary of English v.0.48:

Sweepings \Sweep"ings\, n. pl.
   Things collected by sweeping; rubbish; as, the sweepings of a
   street.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "sweepings":
   afterglow, afterimage, balance, bones, butt, butt end, candle ends,
   chaff, culm, deadwood, debris, detritus, dishwater, draff, dregs,
   dust, end, fag end, filings, fossil, garbage, gash, hogwash,
   holdover, husks, leavings, lees, leftovers, odds and ends, offal,
   offscourings, orts, parings, potsherds, rags, raspings, refuse,
   relics, remainder, remains, remnant, residue, residuum, rest,
   roach, rubbish, ruins, rump, sawdust, scourings, scrap iron,
   scraps, scum, shadow, shards, shavings, slack, slag, slop, slops,
   straw, stubble, stump, survival, swill, tares, trace, vestige,
   wastage, waste, waste matter, wastepaper, weeds