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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.

S&P Dow Jones Indices will not alter eligibility criteria for the S&P 500, preventing fast-tracking of large IPOs.

From Barron's • Jun. 4, 2026

Companies change guardrails, alter models and reshape AI personalities overnight.

From The Wall Street Journal • Jun. 4, 2026

While acknowledging that proof of alien life could dramatically alter society, he argued the impact could ultimately be positive.

From BBC • Jun. 4, 2026

The fire's effects on the Kaibab Plateau will likely alter some of the environmental conditions researchers are monitoring.

From Science Daily • Jun. 2, 2026

Laney—the youngest Vanderbeeker—had transformed into her alter ego, Panda-Laney.

From "The Vanderbeekers of 141st Street" by Karina Yan Glaser




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