20th

from WordNet (r) 3.0 (2006)
20th
    adj 1: coming next after the nineteenth in position [syn:
           {twentieth}, {20th}]
    
from The Collaborative International Dictionary of English v.0.48
20th \20th\ adj.
   1. coming next after the nineteenth in a series

   Syn: twentieth
        [WordNet 1.5]
    

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