expiration
     n 1: a coming to an end of a contract period; "the expiry of his
          driver's license" [syn: {termination}, {expiry}]
     2: euphemistic expressions for death; "thousands mourned his
        passing" [syn: {passing}, {loss}, {departure}, {exit}, {going},
         {release}]
     3: the act of expelling air from the lungs [syn: {exhalation},
        {breathing out}]
Source: WordNet® 2.0