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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 say the slowdown stretches across a large section of the Atlantic Ocean and could eventually alter weather patterns around the world.

From Science Daily • May 10, 2026

"This is an evolutionarily-adapted response that helps us in many situations. However, prolonged cortisol release is not a good thing. It can lead to a variety of physiological conditions and alter mental health."

From Science Daily • May 3, 2026

"But that does not alter the fact that I remain convinced that the Americans are important partners for us -– our most important partners in the North Atlantic alliance," Merz said.

From Barron's • May 3, 2026

The major employee unions could alter the equation if they jump in on Patel’s behalf.

From Los Angeles Times • May 1, 2026

What is a principle, if it alter with circumstance?

From "The Astonishing Life of Octavian Nothing, Traitor to the Nation, Volume II: The Kingdom on the Waves" by M.T. Anderson




Vocabulary lists containing alter