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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

Bombastic yet intimate, fantastical yet sensible, Colbert’s farewell to his Comedy Central audience and his conservative alter ego was about as lovely and loving as TV can be.

From Salon • May 21, 2026

Levine’s office also submitted a shareholder proposal to alter Exxon’s new retail shareholder voting system.

From The Wall Street Journal • May 21, 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

But the young recruits were forbidden to alter the boots in any way.

From "A Thousand Sisters" by Elizabeth Wein




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