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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.

Scientists at APC Microbiome, a leading research center based at UCC, discovered that unhealthy diets during early life can alter how the brain controls appetite and feeding.

From Science Daily • May 21, 2026

The study used computer modelling to understand how climate change could alter how nutrients reached Windermere and Esthwaite Water.

From BBC • May 20, 2026

“At the height of things moving with the wind, even 10 minutes can really alter the course of the fire,” he said.

From Los Angeles Times • May 20, 2026

While a user can’t spend beyond the amount loaded on the card, critics say receiving a notification that they’ve been reimbursed immediately after a purchase can mimic the feeling of gambling and alter spending behavior.

From MarketWatch • May 19, 2026

The ways in which nature pushes back alter as we alter.

From "The Invention of Science" by David Wootton




Vocabulary lists containing alter


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