Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “expiration”


noun [U]    /ˌek·spəˈreɪ·ʃən/
the end of a period of time during which an agreement or official document can be used: He stayed on past the expiration of his tourist visa.
(Definition of expiration noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of expiration

More American English definitions for “expiration”

Definitions of “expiration” in other dictionaries

Word of the Day


a document given to students or reporters which contains information about a particular subject

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More