expiration

英 [,ekspɪ'reɪʃ(ə)n] 美[,ɛkspə'reʃən]

• n. 呼气；终结；届期

1. a coming to an end of a contract period;

"the expiry of his driver's license"

2. euphemistic expressions for death;

"thousands mourned his passing"

3. the act of expelling air from the lungs