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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.

“It keeps markets in a constant state of anticipation, as any unexpected deviation, whether toward a deeper slowdown or higher inflation, could significantly alter monetary policy expectations,” he says.

From MarketWatch • Apr. 1, 2026

These are poets who sought to alter the reader’s perception of reality by way of arresting, often sense-defying arrangements of language and imagery.

From The Wall Street Journal • Mar. 31, 2026

A nonprofit exists to preserve them, but tour guide Teri Rommelmann said preservation efforts aren’t meant to alter the course of nature and time, but rather to save the work from sinking into the sand.

From Los Angeles Times • Mar. 31, 2026

The report also identified "multiple potentially significant" mutations that may alter the bacterium's behaviour.

From BBC • Mar. 27, 2026

They watched the harbors, too, and if a signal went up from the harbormaster or a dockworker, they’d alter the tides and keep anyone from heading out to sea.

From "Six of Crows" by Leigh Bardugo