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

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.

See Examples For:

Friday’s report probably won’t alter the Federal Reserve’s path on interest rates.

From The Wall Street Journal ● Nov. 6, 2026

The results suggest that magnetic fields could fundamentally alter how massive a white dwarf can become.

From Science Daily ● Nov. 6, 2026

Researchers think this could be because such foods cause bigger swings in blood sugar levels and may alter some of the hormonal signals involved in regulating sleep and appetite.

From BBC ● Nov. 6, 2026

Instead, London is pursuing a "debt reset" plan for the poorest Commonwealth countries, led by former Labour prime minister Gordon Brown and which could alter interest rates on repayments.

From Barron's ● Nov. 3, 2026

Darwin's “gemmule” theory—that hereditary instructions were thrown adrift by all cells and then floated in the blood, like a million messages in bottles—suggested that blood transfusions might transmit gemmules and thereby alter heredity.

From "The Gene" by Siddhartha Mukherjee

In that scene, Rhys Harries impressively alters his own features without makeup.

From Los Angeles Times ● Oct. 23, 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

Any analysis that requires drilling or removing part of a specimen permanently alters an object that cannot be replaced.

From Science Daily ● Sep. 20, 2026

Whether the latest upswing in crude prices alters their longer-term outlook remains to be seen, as Brent’s return to triple digits sends government bond yields higher.

From The Wall Street Journal ● Sep. 15, 2026

How writing or just thinking your name alters my mood.

From "Salt to the Sea" by Ruta Sepetys

But AI has been such a major factor in the rates picture this year that an altered trajectory for it might just shift the Fed’s plans.

From The Wall Street Journal ● Nov. 6, 2026

Trump, a former real estate mogul, has altered the president's official office during his second term, most notably by adding many gold features to its walls.

From BBC ● Nov. 6, 2026

The story of CrossFit’s rise—which was alternately helped and hindered by Mr. Glassman’s intense personality—and how it altered the fitness industry is skillfully told by Calum Marsh in “The Glass Box.”

From The Wall Street Journal ● Nov. 4, 2026

El Niño is a naturally occurring climate phenomenon in which warm waters pooling in the eastern Pacific and altered wind patterns drive extreme weather events around the world.

From BBC ● Nov. 4, 2026

Everything here requires so much talking and coordinating with the upper school...This rule and that rule must be followed; this tradition and that tradition cannot be altered.

From "The Marvellers" by Dhonielle Clayton

In the nine days since riots erupted in cities across France, thousands of merchants have also boarded up their storefronts, radically altering the Paris streetscape.

From Los Angeles Times ● Oct. 28, 2026

Rather than simply illuminating a specimen, the laser interacts directly with the microscope's electron beam, altering its phase to increase image contrast.

From Science Daily ● Oct. 22, 2026

The companies leading the race to build artificial superintelligence describe the technology as a force that could reshape entire economies, create vast fortunes and dominate future warfare, potentially altering the geopolitical power balance.

From The Wall Street Journal ● Oct. 15, 2026

The warming phase of a natural climate cycle, El Nino events temporarily elevate global temperatures, altering cloud and wind patterns, and raise the risk of damaging weather.

From Barron's ● Oct. 15, 2026

He tapped the ball, altering its angle and freezing the goalie.

From "Outcasts United: An American Town, a Refugee Team, and One Woman's Quest to Make a Difference" by Warren St. John


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