Expired refers to something that is no longer valid, effective, or in use, often due to the passage of time. Items like food, contracts, or documents can become expired, meaning they are past their designated expiration date. Definitions of expired adjective having come to an end or become void after passage of a period of time “an expired passport” “caught driving with an expired license” synonyms: invalid expired that is no longer valid that has been breathed out dead Definition of expired adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. 1. To come to an end; terminate: My membership in the club has expired. 2. To breathe one's last breath; die: The patient expired early this morning. 3. To exhale; breathe out. EXPIRED definition: 1. past simple and past participle of expire 2. If something that lasts for a fixed length of time…. Learn more. EXPIRED definition: past participle of expire. and past tense form of expire. See examples of expired used in a sentence. The meaning of EXPIRE is to breathe one's last breath : die. How to use expire in a sentence. The meaning of EXPIRED is dead, deceased —often used as a euphemistic or humorous alternative to dead. How to use expired in a sentence. EXPIRED definition: to finish or run out; cease ; come to an end | Meaning, pronunciation, translations and examples.