EXPIRATION definition: a coming to an end; termination; close. See examples of expiration used in a sentence.

Definition of expiration noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The expiration of something such as a contract, deadline, or visa is the time when it comes to an end or stops being valid.

ex•pi•ra•tion (ˌɛk spəˈreɪ ʃən) n. 1. termination; close: the expiration of a contract. 2. the act of breathing out air from the lungs.

There are nine meanings listed in OED's entry for the noun expiration, six of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Expiration refers to the end of a period of validity or usefulness. This could relate to time-sensitive items such as food, contracts, legal documents, licenses, medicines, or promotional offers, where after a …

Apr 19, 2026 · Noun expiration (countable and uncountable, plural expirations) An act, process , or instance of expiring. (uncountable) The act or process of breathing out, or forcing air from the lungs …

The meaning of EXPIRATION is the last emission of breath : death. How to use expiration in a sentence.

Expiration refers to the conclusion or ending of a period of time, often associated with contracts, licenses, or the freshness of perishable items.

EXPIRATION meaning: 1. the situation in which something that lasts for a fixed length of time comes to an end or stops…. Learn more.