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: the date after which something (such as a credit card) is no longer in effect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

The Wendy’s special is already in effect—and while McDonald’s has been very clear that its price reductions are temporary, Wendy’s did not put an expiration date on its deal. —Chris Morris, Fortune, 22 May 2024

Expiration Date: Sunscreens lose effectiveness past their expiration date, so always check before use. Reapplication: Reapply every two hours or immediately after swimming or sweating. —Bethany Braun-Silva, ABC News, 17 May 2024

Word History

First Known Use

circa 1946, in the meaning defined at sense 1

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