XXIV

from WordNet (r) 3.0 (2006)

xxiv
    adj 1: being four more than twenty [syn: {twenty-four}, {24},
           {xxiv}]
    n 1: the cardinal number that is the sum of twenty-three and one
         [syn: {twenty-four}, {24}, {XXIV}, {two dozen}]

from The Collaborative International Dictionary of English v.0.48

xxiv \xxiv\, adj.
   The Roman number representing {twenty-four}.

   Syn: twenty-four, 24.
        [WordNet 1.5]

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