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: the date after which something (such as a credit card) is no longer in effect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 medication will be marked with an expiration date of 02/28/2027. —Madison E. Goldberg, PEOPLE, 16 Apr. 2026

For example, recalled Sterile Eye Drops AC products – row 1, column 2 – have the lot number AC24E01 with an expiration date of May 31, 2026, listed in row 1, column 5. —C. Michael White, CNN Money, 15 Apr. 2026

The law’s expiration date comes after the council previously decided to delay a decision on the emergency legislation, with Councilmember Brooke Pinto planning to call a vote next week in an effort to extend the law through the spring and summer months. —Julia Bonavita, FOXNews.com, 15 Apr. 2026

Everything has got an expiration date. —Jeff Zrebiec, New York Times, 8 Apr. 2026

Word History

First Known Use

1887, in the meaning defined at sense 1

Rhymes for expiration date

• borosilicate
• decontaminate
• deoxycholate
• deteriorate
• differentiate
• diisocyanate
• dinoflagellate
• excommunicate
• incapacitate
• insubordinate
• intercorporate
• interpenetrate

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