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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.

See Examples For:

Oxygen loss can reduce or relocate their prey, damage habitats and alter the food webs they depend on.

From Science Daily Jul. 20, 2026

A few tenths of a percentage point won’t alter the big picture.

From The Wall Street Journal Jul. 19, 2026

The researchers found that several compounds in coffee can bind to NR4A1 and alter its activity.

From Science Daily Jul. 19, 2026

He also said he saw "no reason" to change Germany's laws on surrogate pregnancy or alter the CDU's longstanding opposition.

From Barron's Jul. 18, 2026

If I stopped someone to ask them a question, and that thirty-second delay caused them to accidentally get taken out by a runaway horse or something, I could completely alter history.

From "Glitch" by Laura Martin

He used his remission to promote CAR T-cell therapy, which genetically alters one’s cells to fight cancer, after he said chemotherapy stopped working.

From Los Angeles Times Jul. 13, 2026

The change significantly alters the players’ preparation, starting with meal times, Aguirre told Mexican radio.

From The Wall Street Journal Jul. 3, 2026

The process also alters many of the tea's naturally occurring compounds.

From Science Daily Jun. 23, 2026

Moreover, the repeal of this rule substantially alters settlement dynamics.

From MarketWatch Jun. 17, 2026

“None of this alters the validity of the work done with HeLa cells,” she wrote, “but it may be worth noting—for the record.”

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot

It also altered the structure and chemistry of the oceanic plate beneath it.

From Science Daily Jul. 18, 2026

In the human digestive system, sweeteners may be absorbed, chemically altered, diluted, or broken down before reaching particular microbes.

From Science Daily Jul. 17, 2026

Years later, Messi acknowledged that the incident had altered the perception some Mexican fans had of him.

From Los Angeles Times Jul. 15, 2026

The lead author of the study, Fangjingcheng Zhu, says the study shows the Atlantic circulation can be "abruptly altered during climate change".

From BBC Jul. 14, 2026

Since large-scale human cooperation is based on myths, the way people cooperate can be altered by changing the myths—by telling different stories.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

The debate is not about whether AI is real or whether it’s reshaping the U.S. economy by fundamentally altering corporate productivity, capital allocation and the labor market.

From MarketWatch Jul. 20, 2026

Before attempting to reshape an entire planet, we first need a much deeper understanding of Mars itself, along with the scientific, environmental, and ethical consequences of altering it.

From Science Daily Jul. 17, 2026

They have known for decades that climate change is altering the frequency and intensity of several types of extreme weather events, including hurricanes, heat waves and extreme rainfall.

From Barron's Jul. 16, 2026

Users said ADI Predictstreet mismanaged the contest, unexpectedly shifting the dates of snapshots and altering the rules, then failing to deliver tickets.

From The Wall Street Journal Jul. 12, 2026

The Wart found that he could keep more or less level by altering the inclination of his arm fins and the ones on his stomach.

From "The Once and Future King" by T. H. White




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