1
sth expires
表示证件、合同等有效期结束，主语通常是物。
My passport expires next year.
我的护照明年到期。
期满，失效
先理解核心含义，再看它在真实句子里的用法。
期满，失效
lose validity
My passport expires next year.
我的护照明年到期。
死亡；去世。
To die.
失效；到期作废。
To lapse and become invalid.
结束；终止。
To come to an end; to conclude.
呼出；呼气。
To exhale; to breathe out.
expire
Base
原形
expires
3rd person
第三人称单数
expiring
-ing
现在分词
expired
Past
过去式
expired
Past participle
过去分词
The contract expires next month.
合同下月到期。
My passport expired last year.
我的护照去年过期了。
The lease is expiring soon.
租约即将到期。
The offer has expired.
优惠已过期。
The membership will expire in December.
会员资格将在12月到期。
常用于证件、合同、优惠等失效，也可表示‘断气’但较少用。
My passport will expire next year, so I need to renew it.
我的护照明年到期，所以我需要续签。
The coupon expired yesterday, so I can't use it anymore.
优惠券昨天就过期了，所以我不能再用了。
The contract expires at the end of this month.
这份合同本月底到期。
表示证件、合同等有效期结束，主语通常是物。
My passport expires next year.
我的护照明年到期。
明确失效的具体日期或时间点。
The contract expires on December 31st.
合同于12月31日到期。
婉辞，指人死亡，常用于正式或医学语境。
The patient expired peacefully in his sleep.
病人在睡梦中平静地去世了。
Not this
The expire date of the yogurt is passed.
Use this
The expiration date of the yogurt has passed.
错误：将动词 'expire' 误用作名词或形容词。正确形式是名词 'expiration date'（截止日期）。
Not this
I expired my contract last week.
Use this
My contract expired last week.
错误：将不及物动词 'expire' 误用作及物动词。'expire' 表示“到期”时不能带宾语，应使用主动语态且主语是事物。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
合同到期
My employment contract expires next month.
我的雇佣合同下个月到期。
护照过期
Her passport expires in two weeks.
她的护照两周后过期。
许可证失效
The driver's license expires on his birthday.
驾驶证在他的生日那天失效。
会员资格到期
My gym membership expires at the end of the year.
我的健身房会员资格年底到期。
优惠截止
This special offer expires on Friday.
这个特价优惠周五截止。
租约到期
The lease for the apartment expires in June.
公寓的租约六月到期。
不了了之，半途而废
The project expired on the vine due to lack of funding.
由于缺乏资金，该项目半途而废了。
被遗忘
Many childhood memories eventually expire from memory.
许多童年记忆最终会被遗忘。
Use expire naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：ex（向外）+ pire（像fire火），火灭了，东西失效或生命终止。
多用于正式或半正式场合，如证件、合同、食品有效期等；另一含义用于正式或委婉表达死亡。
All listed words rhyme with 'expire', sharing the /aɪə/ ending sound. Their spellings also end with 'ire', making them useful for spelling and pronunciation comparison. Note that 'expire' is stressed on the second syllable (ikˈspaɪə), while 'fire' and 'wire' are stressed on the first, but the vowel sounds match.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY, WORDNET.