mod·​i·​fi·​ca·​tion | \ ˌmä-də-fə-ˈkā-shən How to pronounce modification (audio) \

Definition of modification

1 : the limiting of a statement : qualification with some modifications this statement is true today— J. B. Conant
3a : the making of a limited change in something making the exactly minimum degree of modification to her institutions necessary to fit them to new conditions— John Strachey also : the result of such a change
b : a change in an organism caused by environmental factors
4 : a limitation or qualification (see qualification sense 1) of the meaning of a word by another word, by an affix, or by internal change

Keep scrolling for more

Examples of modification in a Sentence

The program can be used on all computers without modification. They passed the law with only a few minor modifications. The weather required some major modifications to our travel plans.
See More
Recent Examples on the Web Groups moving through the maze are limited to eight or fewer members, a modification in light of COVID-19. Patrick Connolly,, "Scream n’ Stream and Tunnel of the Damned: A first look at two new Orlando Halloween attractions," 1 Oct. 2020 Such a modification happened in only 9 percent of cases last year. Washington Post, "A jury sentenced him to 74 years in prison. Some now say it wasn’t their choice.," 27 Sep. 2020 The Maryland judiciary has directed that unemployed parents must continue to pay child support as ordered, pending a modification. Donna Engle,, "Legal Matters: Unemployed parents must continue to pay child support," 26 Sep. 2020 The helicopter is a modification of the CH-47 Chinook used by mainstream U.S. Army units. Kyle Mizokami, Popular Mechanics, "Here's the New Heavy Lift Helicopter for U.S. Commandos," 7 Sep. 2020 Across the country, 37 states have instituted some modification to the fall season, the rest have chosen to play their fall sports as originally scheduled; some have begun football already. Dom Amore,, "National Federation director Karissa Niehoff expresses support for CIAC, considers 7-on-7 football, outdoor volleyball viable fall options," 26 Aug. 2020 Boeing has been discussing a modification that would be installed after the plane returns to service, Belcea said. Ryan Beene,, "Boeing 737 Max Return Outside U.S. Seen Slowed by Regulators," 12 Aug. 2020 The board approved the site layout and budget for the Solana Santa Fe School modernization Project, and for the District Office building modification project. Laura Groch, San Diego Union-Tribune, "How they voted, Sept. 20," 20 Sep. 2020 Edwards’ plan represents only a slight modification of social distancing and business restrictions, and the state could reimpose Phase 2 or even Phase 1 rules if there is a spike in cases. Sarah Ravits,, "Six-month check-in: Where Louisiana — and New Orleans — stand with COVID-19," 11 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'modification.' 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 modification

1603, in the meaning defined at sense 1

Keep scrolling for more

Learn More about modification

Time Traveler for modification

Time Traveler

The first known use of modification was in 1603

See more words from the same year

Statistics for modification

Last Updated

16 Oct 2020

Cite this Entry

“Modification.” Dictionary, Merriam-Webster, Accessed 25 Oct. 2020.

Keep scrolling for more

More Definitions for modification


How to pronounce modification (audio)

English Language Learners Definition of modification

: the act or process of changing parts of something : the act or process of modifying something
: a change in something (such as a system or style)


mod·​i·​fi·​ca·​tion | \ ˌmä-də-fə-ˈkā-shən How to pronounce modification (audio) \

Kids Definition of modification

1 : the act or process of changing parts of something
2 : a slightly changed form


mod·​i·​fi·​ca·​tion | \ ˌmäd-ə-fə-ˈkā-shən How to pronounce modification (audio) \

Medical Definition of modification

1 : the act or result of modifying something
2 : a change in an organism that is not inherited and that is caused by the influence of its environment

Keep scrolling for more

Comments on modification

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


Test Your Vocabulary

Namesakes Word Quiz

  • a citrus fruit possibly named after a person
  • Which of the following is a fruit named after a Moroccan seaport?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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!