1000th

from WordNet (r) 3.0 (2006)
1000th
    adj 1: the ordinal number of one thousand in counting order
           [syn: {thousandth}, {1000th}]
    
from The Collaborative International Dictionary of English v.0.48
1000th \1000th\ adj.
   1. coming next after the nine hundred ninety-ninth in a
      series

   Syn: thousandth
        [WordNet 1.5]
    

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