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In Greek mythology, which shape-shifting sea god could alter his appearance at will?

alter

[awl-ter] / ΛˆΙ”l tΙ™r /




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.

See Examples For:

For Rispoli, his alter ego was a major complication in his professional career.

From Los Angeles Times ● Oct. 27, 2026

For others going through a difficult time — divorce, death, unexpected medical bills, a house with a dodgy foundation — studies show that chronic stress can alter your brain chemistry and lead to poor decision-making.

From MarketWatch ● Oct. 26, 2026

This effect occurs when microwave control signals alter a qubit's effective energy levels, producing changes in the phase of its quantum state.

From Science Daily ● Oct. 26, 2026

With a seeming flick of a switch, he has the power to alter the course of a deadly conflict.

From The Wall Street Journal ● Oct. 21, 2026

I do not alter my expression, for fear of his not being alone.

From "The Cruel Prince" by Holly Black

This effectively alters the cosmic ruler used to measure distances and, in turn, the value of the Hubble constant inferred from the model, helping to ease the Hubble tension.

From Science Daily ● Oct. 4, 2026

Spanish meteorological research group Climatoc-Lab described it as "a manifestation of how global warming alters the hydrological cycle".

From BBC ● Sep. 22, 2026

The bank doesn’t think the announcement materially alters the core investment debate, as investors expected a restructuring would involve substantial charges and write-downs.

From The Wall Street Journal ● Sep. 21, 2026

In her version, Bernhard alters the lyrics to pay tribute to Sylvester, whose untimely death left an immense legacy.

From Salon ● Sep. 5, 2026

Much as a real mirror introduces changes of its own and does not reflect the simple truth, so this one alters the way the girl looks, revealing a deeper reality.

From "History of Art, Volume 1" by H.W. Janson

Authorities determined that Owens altered an ultrasound image, fabricated a pregnancy video and lied under oath claiming she was pregnant, according to a statement from prosecutors at the time.

From Los Angeles Times ● Oct. 26, 2026

The team altered only the movements around the eyes and eyebrows, leaving verbal content and vocal delivery unchanged.

From BBC ● Oct. 22, 2026

It altered the makeup of the broader microbial community.

From Science Daily ● Oct. 18, 2026

Understand the world with the help of the Muppets: In 2012, Dahlia Lithwick published a piece of cultural analysis that permanently altered how readers viewed their marriages, their workplaces, and the U.S.

From Slate ● Oct. 16, 2026

Sometimes, he altered the order, put the third daughter first or the oldest one second.

From "How the GarcΓ­a Girls Lost Their Accents" by Julia Alvarez

Fintech founders have caught on to how Americans are altering their financial habits, and they’ve created new products to try to meet the moment.

From MarketWatch ● Oct. 13, 2026

"You're altering the microbiome of your gut, and perhaps creating antibiotic resistant bacteria in your body that will fight off the drug therapy the next time you really need it," he said.

From Barron's ● Oct. 8, 2026

The constant flux of TikTok clips, Instagram reels and YouTube shorts running through our social-media feeds isn’t only zapping our attention spans, it’s altering how we perceive time.

From The Wall Street Journal ● Oct. 3, 2026

About a decade ago, the practice was still allowed across all US state but more and more states have been altering laws.

From BBC ● Oct. 1, 2026

The staff plan would, furthermore, for each of the four resident employees mean a radical altering of our respective customary duties.

From "The Remains of the Day" by Kazuo Ishiguro


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