al·ter·ation | \ˌȯl-tə-ˈrā-shən \
plural alterations

Definition of alteration 

1 : the act or process of altering something The dress needs alteration for a proper fit. : the state of being altered

2 : the result of changing or altering something: such as

a : a change made in fitting a garment no charge for alterations

b : a change in a legal instrument that alters its legal effect She made some alterations to her will.

c : a mineral that has been altered by a chemical process : metasomatism

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Examples of alteration in a Sentence

the alteration of the pattern They did a good job on the dress alteration. He made alterations in his will.
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Recent Examples on the Web

The council agreed to submit the ordinance, without alteration, to the voters, and to call an election in November. Laura Groch,, "How they voted, June 10," 10 June 2018 And some landscape alterations, including wildfires, can increase their likelihood or severity. Sean W. Fleming, WIRED, "Lessons from Montecito: Science's Credibility Is At Stake," 14 May 2018 Have a system for dirty laundry, dry cleaning, alterations, donations and sell. NBC News, "How to spruce up your home for spring ... on a budget," 19 Apr. 2018 But there are thousands of other alterations in those genes that the company does not track. Gina Kolata, The Seattle Times, "Online gene test finds dangerous mutation, but it may be wrong," 2 July 2018 But there are thousands of other alterations in those genes that the company does not track. Gina Kolata, New York Times, "The Online Gene Test Finds a Dangerous Mutation. It May Well Be Wrong.," 2 July 2018 Over the years, the home has been sympathetically updated with additions for a total of five alterations that follow the principles of the modernist architect and now encompass four bedrooms and three bathrooms over 2,838 square feet. Lauren Ro, Curbed, "Updated Marcel Breuer home asks $895K outside NYC," 26 Mar. 2018 Presently, protection uses a mix of operating system alterations and processor microcode. Peter Bright, Ars Technica, "Intel outlines plans for Meltdown and Spectre fixes, microcode for older chips," 15 Mar. 2018 Finance Minister Taro Aso said Monday that an investigation by the ministry and prosecutors has found 14 instances of alterations. Fox News, "Japan govt altered documents in scandal linked to Abe's wife," 12 Mar. 2018

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

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First Known Use of alteration

14th century, in the meaning defined at sense 1

History and Etymology for alteration

see alter

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Statistics for alteration

Last Updated

12 Oct 2018

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Time Traveler for alteration

The first known use of alteration was in the 14th century

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More Definitions for alteration



English Language Learners Definition of alteration

: the act, process, or result of changing or altering something


al·ter·ation | \ˌȯl-tə-ˈrā-shən \

Kids Definition of alteration

1 : the act or process of changing something She began alteration of the design.

2 : the result of changing : modification a minor alteration

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Comments on alteration

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


to reject or criticize sharply

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