alter

verb
al·​ter | \ ˈȯl-tər How to pronounce alter (audio) \
altered; altering\ -​t(ə-​)riŋ How to pronounce altering (audio) \

Definition of alter

transitive verb

1 : to make different without changing into something else an event that altered the course of history
2 : castrate, spay had the puppies altered

intransitive verb

: to become different customs that alter with the times

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Other Words from alter

alterability \ ˌȯl-​t(ə-​)rə-​ˈbi-​lə-​tē How to pronounce alterability (audio) \ noun
alterable \ ˈȯl-​t(ə-​)rə-​bəl How to pronounce alterable (audio) \ adjective
alterably \ -​blē How to pronounce alterably (audio) \ adverb
alterer \ -​tər-​ər How to pronounce alterer (audio) \ noun

Choose the Right Synonym for alter

change, alter, vary, modify mean to make or become different. change implies making either an essential difference often amounting to a loss of original identity or a substitution of one thing for another. changed the shirt for a larger size alter implies a difference in some particular respect without suggesting loss of identity. slightly altered the original design vary stresses a breaking away from sameness, duplication, or exact repetition. vary your daily routine modify suggests a difference that limits, restricts, or adapts to a new purpose. modified the building for use by the disabled

Examples of alter in a Sentence

Alcohol can alter a person's mood. He altered his will to leave everything to his sister. This one small event altered the course of history. The place has altered in the 10 years since I left. I'll need to have the dress altered before the wedding.
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Recent Examples on the Web

Specific elements have been altered since the Pelli-Walker team was selected by the Transbay Joint Powers Authority, but the ambitions never wavered. John King, SFChronicle.com, "Park-topped Transbay transit center pays architectural dividends, past troubles aside," 26 Aug. 2019 Receipts submitted to the city had been altered to remove her name, records show. Miles Moffeit, Dallas News, "Resign or be recalled, DeSoto residents tell councilwoman; her colleagues remain silent," 21 Aug. 2019 Common sense tells us that one wet winter does not alter or solve the fundamental challenges facing the water supply across the Colorado River Basin. Ted Kowalski, The Denver Post, "Guest Commentary: A wet year has filled our reservoirs but we must prepare for the drought to come," 14 Aug. 2019 The announcement does not alter the administration’s plans to significantly increase the cost of staying at the state’s Pioneer Homes. James Brooks, Anchorage Daily News, "Dunleavy restores benefits to Alaska seniors, but most vetoes are expected to stand," 13 Aug. 2019 Antonio Brown is reportedly willing to retire from the NFL if the league doesn't alter its helmet policy. Michael Shapiro, SI.com, "What is the NFL's Helmet Policy Driving Antonio Brown's Absence?," 9 Aug. 2019 But Trump has questioned the CIA's findings in the Khashoggi case and said that his slaying, while a horrible act, should not alter America's close alliance with the Saudis. Deirdre Shesgreen, USA TODAY, "Senate fails to override Trump's veto of Saudi arms deal in new setback for kingdom's critics," 29 July 2019 Huang and Mass Counts have long planned for a disappointing High Court ruling; today’s mixed message doesn’t alter the fundamental plan. Adam Eichen, The New Republic, "Advocates Want Everyone Counted, No Matter the Fate of the Citizenship Question," 27 June 2019 Construction won’t alter the 2020 AHSAA state basketball tournament, which will still be played in Birmingham, and the tourney should return to Legacy Arena in 2022. Josh Bean | Jbean@al.com, al.com, "AHSAA searching for 2021 state HS basketball tourney site," 26 June 2019

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

14th century, in the meaning defined at transitive sense 1

History and Etymology for alter

Middle English, from Medieval Latin alterare, from Latin alter other (of two); akin to Latin alius other — more at else

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More Definitions for alter

alter

verb

English Language Learners Definition of alter

: to change (something)
: to make a change to (a piece of clothing) so that it will fit better
US : to remove the sex organs of (an animal) so that the animal is unable to reproduce

alter

verb
al·​ter | \ ˈȯl-tər How to pronounce alter (audio) \
altered; altering

Kids Definition of alter

: to change partly but not completely … each time he had altered his course.— Walter Farley, The Black Stallion