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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.

If the density becomes high enough, the dark matter could alter the gravitational waves produced when black holes collide.

From Science Daily • May 19, 2026

However, it did little to alter their Premier League fortunes.

From BBC • May 16, 2026

“There is the potential for Iran to prolong disruption for revenue and leverage, and we do not anticipate the Trump-Xi summit to alter this trajectory,” says the firm.

From The Wall Street Journal • May 13, 2026

The heightened attention to the substance comes as wellness intersects more deeply with health, and as GLP-1 weight-loss medications alter the way Americans eat.

From MarketWatch • May 10, 2026

In criminal cases, witnesses who will be testifying are required to sit outside the courtroom so they can’t alter their testimony based on what other witnesses say.

From "Just Mercy" by Bryan Stevenson




Vocabulary lists containing alter


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