Expiry and expiration both inherently imply an end or a termination of something, frequently pertaining to time or life cycle. Expiry often finds its place in contexts like the end date of a contract or an agreement. Meanwhile, expiration, while it can also be used in such contexts, can denote the end of one’s breath, indicating a slightly broader usage in specific contexts. Definition of expiry noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Expiry is typically used to refer to the end of a period of time, such as the end of a contract, document, or license. This could include the expiration date of a product, a job contract, or a credit card. The meaning of EXPIRY is expiration. How to use expiry in a sentence.