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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.

Owen thinks the risk is limited, as many farmers locked in fertilizer purchases last fall and are unlikely to alter planting plans significantly.

From Barron's • May 1, 2026

The nation’s second-largest school system, with close to 400,000 students, faces evolving challenges and uncertainties that could alter the direction of the district for years.

From Los Angeles Times • Apr. 30, 2026

They contended that through mental exercises, people could alter the shapes of their own brains, cultivating desirable qualities and suppressing undesirable ones.

From The Wall Street Journal • Apr. 29, 2026

Extra fat tissue is thought to alter hormones in the body, such as insulin, which can affect the risk of cancer.

From BBC • Apr. 28, 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