expiration date

noun

1
: the date after which something (such as a credit card) is no longer in effect
2
: the date after which a product (such as food or medicine) should not be sold because of an expected decline in quality or effectiveness

Examples of expiration date in a Sentence

Check the expiration date on the bottle to make sure the medicine is still good.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The first set of perpetual futures, which do not have an expiration date, as traditional futures do, would be for cryptocurrencies, Webull said. — Eamon Javers,tanaya MacHeel, CNBC, 21 Oct. 2026 But that timeline—the collection statute expiration date, or CSED—isn’t fixed. — Charles T. Almond Iii, Forbes.com, 20 Oct. 2026 Jonathan Walter, Valentina Breschi/AFP via Getty Images The deal, which has no expiration date, also blocks non-NATO countries from establishing bases on the island without agreement from the parties. — Duarte Dias, CBS News, 14 Oct. 2026 Get free replacements, exchanges, or returns for store credit with no expiration date after purchase. — Katie Decker-Jacoby, StyleCaster, 13 Oct. 2026 See All Example Sentences for expiration date

Word History

First Known Use

1887, in the meaning defined at sense 1

Time Traveler
The first known use of expiration date was in 1887

Browse Nearby Words

Cite this Entry

“Expiration date.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expiration%20date. Accessed 24 Oct. 2026.

Kids Definition

expiration date

noun
1
: the date on which something (as a credit card) is no longer of use
2
: the last date on which a product (as food or medicine) can be safely used
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