What does expired mean

ex·pire ˌikˈspī(ə)r/ verb past tense: expired; past participle: expired 1. (of a document, authorization, or agreement) cease to be valid, typically after a fixed period of time. "the old contract had expired" synonyms: run out, become invalid, become void, lapse; More (of a period of time) come to an end. "the three-year period has expired" (of a person) die. synonyms: die, pass away/on, breathe one's last; More 2. technical exhale (air) from the lung. synonyms: breathe out, exhale, blow out, expel "the breath is then expired"