noun
expiration
ehk-spuh-RAY-shuhn
noun
1
The point at which something, such as a contract or a product's usability, comes to an end.
"Check the expiration date before eating the yogurt."
"The lease is nearing its expiration."
How to Use Expiration
Learner’s notesIn plain EnglishThe moment something stops being valid or usable.
UK vs US
US English favors "expiration date"; British English more often says "expiry date."
Common pairings
expiration date
reach expiration
Word Forms
expirations plural
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Check the _____ date before eating the yogurt.
Etymology
From Latin expiratio, related to expirare ("to breathe out, come to an end") — the same root as "expire."