d
     adj : denoting a quantity consisting of 500 items or units [syn: {five
           hundred}, {500}]
     n 1: a fat-soluble vitamin that prevents rickets [syn: {vitamin D},
           {calciferol}, {viosterol}, {ergocalciferol}, {cholecarciferol}]
     2: the cardinal number that is the product of one hundred and
        five [syn: {five hundred}, {500}]
     3: the 4th letter of the Roman alphabet
Source: WordNet® 2.0