The Collaborative International Dictionary of English v.0.48:

dishpan \dishpan\ n.
   1. large pan for washing dishes.
      [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

dishpan \dishpan\ n.
   a large pan for washing dishes.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

dishpan
    n 1: large pan for washing dishes

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "dishpan":
   aquamanile, automatic dishwasher, basin, bath, bathtub, bidet,
   dishwasher, ewer, finger bowl, kitchen sink, lavabo, lavatory,
   piscina, shower, shower bath, shower curtain, shower head,
   shower room, shower stall, showers, sink, tub, wash barrel,
   wash boiler, washbasin, washbowl, washdish, washer,
   washing machine, washing pot, washpot, washstand, washtub