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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

"The introduction of soft materials that can expand, contract, and alter their shape opens up an entirely new toolbox in the world of optics to manipulate how things look."

From Science Daily • Mar. 31, 2026

In some regards this narrator, a husband and father, is Mr. Lerner’s most mature alter ego, but he often seems like the same schlemiel as the feckless grad student in “Leaving the Atocha Station.”

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

When the insertions arrived in Florence, the covering letter from Riccardi included the sentence, ‘the author may alter or embellish the wording, so long as the substance is preserved’.

From "The Scientists" by John Gribbin