alteration
noun
al·ter·a·tion
ˌȯl-tə-ˈrā-shən 
plural alterations
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
Synonyms
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.
Recent Examples on the Web
Any major chemical alteration to the fossil can affect the strontium value and give an inaccurate date.
—
Bruce J. MacFadden, The Conversation, 3 Feb. 2025
The ballpark was granted landmark status in 1984 to prevent alterations by Tribune Co. in what was then a mostly advertising-free venue.
—Paul Sullivan, Chicago Tribune, 30 Jan. 2025
Probably most significant were alterations to protections afforded by the Clean Water Act, the Endangered Species Act, and the National Environmental Protection Act (NEPA).
—Frederick Reimers, Outside Online, 27 Jan. 2025
That is a tweak from when Dubravka deputised last season, suggesting a deliberate alteration, and the goalkeeper has looked far more assured because of it.
—Chris Waugh, The Athletic, 23 Jan. 2025
See all Example Sentences for alteration 
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Bruce J. MacFadden, The Conversation, 3 Feb. 2025
The ballpark was granted landmark status in 1984 to prevent alterations by Tribune Co. in what was then a mostly advertising-free venue.
—Paul Sullivan, Chicago Tribune, 30 Jan. 2025
Probably most significant were alterations to protections afforded by the Clean Water Act, the Endangered Species Act, and the National Environmental Protection Act (NEPA).
—Frederick Reimers, Outside Online, 27 Jan. 2025
That is a tweak from when Dubravka deputised last season, suggesting a deliberate alteration, and the goalkeeper has looked far more assured because of it.
—Chris Waugh, The Athletic, 23 Jan. 2025
See all Example Sentences for alteration
Articles Related to alteration
Dictionary Entries Near alteration
Cite this Entry
“Alteration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alteration. Accessed 10 Feb. 2025.
Copy CitationKids Definition
alteration
noun
al·ter·ation
ˌȯl-tə-ˈrā-shən
1
a
: the act or process of altering
b
: the state of being altered
2
: the result of altering : modification
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