voltage
Americannoun
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of voltage
Explanation
Voltage is a measure of electrical energy. If you've got a high-voltage personality, people may use another electrical metaphor and describe you as "a live wire." Someone calculates voltage by determining the difference in electrical charge between two points in a circuit. When you travel, you'll want to make sure you bring along adapters to plug into the various sorts of electrical outlets you'll encounter around the world. Your chargers and all your electrical gear should have dual voltage capability, so they can work on electrical currents of 100 volts to 240 volts.
Vocabulary lists containing voltage
Engineering - Introductory
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Electricity and Magnetism - Introductory
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Physical Science - Energy - Introductory
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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.
Just as topology locks the Hall voltage into specific values, the topology of space-time could lock the cosmological constant into stable values, protecting it from the quantum fluctuations that would otherwise drive it much higher.
From Science Daily • Jun. 19, 2026
Likewise, increased AI demand means the potential expansion of ultrahigh voltage, or UHV, transmission lines, which are widely used in other nations like China.
From Barron's • Jun. 11, 2026
During testing, the researchers remotely varied the voltage supplied to the thrusters.
From Science Daily • Jun. 10, 2026
Solid-state transformers are much lighter than the current version and can manipulate voltage in more sophisticated ways—almost like switching an analog system to digital.
From Barron's • Jun. 4, 2026
We’ll send you instructions on how to step down the voltage and put a new breaker in the line, but I'm sure you already know how.
From "The Martian" by Andy Weir
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
