Xxi

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  xxi \xxi\, adj.
     The Roman number representing {twenty-one}.
  
     Syn: twenty-one, 21.
          [WordNet 1.5]



From WordNet (r) 2.0 [wn]:

  xxi
       adj : being one more than twenty [syn: {twenty-one}, {21}]
       n : the cardinal number that is the sum of twenty and one [syn:
           {twenty-one}, {21}]