Search Result for "21st": 
Wordnet 3.0

ADJECTIVE (1)

1. coming next after the twentieth in position;
[syn: twenty-first, 21st]



The Collaborative International Dictionary of English v.0.48:

21st \21st\ adj.
   1. coming next after the twentieth in a series

   Syn: twenty-first
        [WordNet 1.5 +PJC]


WordNet (r) 3.0 (2006):

21st
    adj 1: coming next after the twentieth in position [syn:
           twenty-first, 21st]