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: the date after which something (such as a credit card) is no longer in effect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
There is no expiration date for that, no matter how much younger NBA superstars seem to get.
—
Mirin Fader, New York Times, 7 Jan. 2026
Always check the expiration date on your krill oil supplement and never take the capsules if the expiration date has passed.
—Bestreviews, Chicago Tribune, 7 Jan. 2026
Car seats have an expiration date, while old cribs, bouncers, and toys could have been pulled from the market due to safety concerns.
—Brandee Gruener, Southern Living, 2 Jan. 2026
Democrats in power at the time extended them, moving the expiration date to the start of 2026.
—Ali Swenson, Fortune, 2 Jan. 2026
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Cite this Entry
“Expiration date.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expiration%20date. Accessed 13 Jan. 2026.
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