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Definitions

alter

[awl-ter] / ˈɔl tər /




Usage

What is another way to say alter? To alter is to make some partial change, as in appearance, while still preserving the identity: to alter a dress, as by raising the hem (to change a dress would mean to put on a different one). To change is to make a material difference so that something is distinctly different from what it was: to change one's opinion. 

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers from Stockholm University, Nordita, and the University of Tübingen propose looking at how these waves subtly alter the light emitted by atoms.

From Science Daily • Apr. 10, 2026

But the 2022 energy shock in Europe didn’t much alter the growth trajectory of wind and solar power, despite many policy announcements.

From The Wall Street Journal • Apr. 9, 2026

It can also alter polar and tropical jet streams, sending storms on a path through Southern California and the southern United States, experts say.

From Los Angeles Times • Apr. 9, 2026

If you won $100 million — a life-changing sum — $5 million or $10 million could change her life and would not alter yours in any meaningful way as a newly minted multimillionaire.

From MarketWatch • Apr. 7, 2026

People who can make gold from lead, or anything else for that matter, who can alter the very material of the world—financial markets would be thrown into chaos.

From "Six of Crows" by Leigh Bardugo




Vocabulary lists containing alter