expiration date


Definition of expiration date

1 : the date after which something (such as a credit card) is no longer in effect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

Worse, researchers have shown that Web bots making random guesses on legitimate websites can often come up with the appropriate CVV and expiration date to pair with a card number. Megan Geuss, Ars Technica, "Pilot project demos credit cards with shifting CVV codes to stop fraud," 28 Dec. 2018 Yet of the last 45 reauthorizations, 42 merely altered the expiration date. The Editorial Board, WSJ, "Flood Deja Vu All Over Again," 21 Dec. 2018 Emails released by Republican Attorney General Mike DeWine's office shed new light on behind-the-scenes anxiety surrounding more than 50 bulletproof vests that had passed the five-year expiration date set by the National Institute of Justice. Julie Carr Smyth, Fox News, "Agents with expired vests vented, prepared for 'misfortune'," 21 Aug. 2018 Google’s license to spend apparently has an expiration date. Dan Gallagher, WSJ, "Google Runs Up Another Big Tab," 5 Feb. 2019 The affected montelukast bottles are from lot number MON17384 and have an expiration date of December 31, 2019. Sarah Jacoby, SELF, "The FDA Just Recalled Montelukast Pills for a Dangerous Labeling Mistake," 4 Sep. 2018 Researchers found that people typically choose to complete tasks that have short deadlines and repeatedly put off ones that don’t have an expiration date. Samantha Boardman, Marie Claire, "How to Actually Get Through Your To-Do List," 28 Dec. 2018 Kit makers worry that fresh products may linger in back rooms or hit expiration dates on the shelf, so some use ingredients that can last longer. Jennifer Smith, WSJ, "The Messy Business of Selling Meal Kits," 27 July 2018 The recalled products are from lot No. 5620706 and have a May 2019 expiration date. Michelle Ewing, ajc, "Birth control pill recall: Taytulla packaging error could lead to unintended pregnancy," 30 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'expiration date.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of expiration date

circa 1946, in the meaning defined at sense 1

Keep scrolling for more

Learn More about expiration date

Dictionary Entries near expiration date




expiration date




Statistics for expiration date

Last Updated

21 Apr 2019

Look-up Popularity

Time Traveler for expiration date

The first known use of expiration date was circa 1946

See more words from the same year

Keep scrolling for more

More Definitions for expiration date

expiration date


Financial Definition of expiration date

What It Is

The expiration date is the last day an options contract can be exercised. After that, the contract becomes null and void.

How It Works

When an options contract is written, the expiration date is specified as one of its terms. For equity options, this date is usually the third Saturday of the specified month of expiration. The contract's expiration date is the last opportunity the holder has to exercise the options contract. When the expiration date passes, the terms of the contract become void and the contract loses the entirety of its market value.

Why It Matters

An option's price is made up of two main factors: intrinsic value and time value. Time value is directly related to the amount of time the option has before it expires. The longer an option has until its expiration date, the more time the underlying stock price has to move, which makes the option more valuable. As the contract moves closer to its expiration, the odds that the stock price will change are lower, and the option's value decreases.

Also, if an option is at or near its strike price near to its expiration, the volatility of the option will most likely increase.

Source: Investing Answers

More from Merriam-Webster on expiration date

Rhyming Dictionary: Words that rhyme with expiration date

Comments on expiration date

What made you want to look up expiration date? Please tell us where you read or heard it (including the quote, if possible).


having no equal

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!