expire
/ɪkˈspaɪə(r)/verb
1
- no obj.(of a document, authorization, or agreement) cease to be valid, typically after a fixed period of time（文件, 授权书, 协议）期满; 成为无效; 失效：
his driving licence expired.
他的驾驶执照过期了。
1.1
- (of a period of time) come to an end（期限）终止：
the three-year period has expired.
三年的时间已经结束。
1.2
- (of a person) die（人）死亡, 断气。
2
- with obj. technical exhale (air) from the lung〈技〉呼（气）。
词源
late Middle English: from Old French expirer, from Latin exspirare 'breathe out', from ex- 'out'+spirare 'breathe'.