1
     adj : used of a single unit or thing; not two or more; "`ane' is
           Scottish" [syn: {one}, {i}, {ane}]
     n : the smallest whole number or a numeral representing this
         number; "he has the one but will need a two and three to
         go with it"; "they had lunch at one" [syn: {one}, {I}, {ace},
          {single}, {unity}]
Source: WordNet® 2.0