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energize

American  
[en-er-jahyz] / ˈɛn ərˌdʒaɪz /
especially British, energise

verb (used with object)

energizes, present (3rd person singular) energized, past participle, past energizing present participle
  1. to give energy to; rouse into activity.

    to energize the spirit with brave words.

  2. to supply electrical current to or store electrical energy in.


verb (used without object)

energizes, present (3rd person singular) energized, past participle, past energizing present participle
  1. to be in operation; put forth energy.

energize British  
/ ˈɛnəˌdʒaɪz /

verb

  1. to have or cause to have energy; invigorate

  2. (tr) to apply a source of electric current or electromotive force to (a circuit, field winding, etc)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of energize

First recorded in 1745–55; energ(y) + -ize

Explanation

Energize means to raise the energy level of something. If your really boring teacher suddenly starts throwing M&Ms to every student with a correct answer, he will energize the classroom. Ever seen the Energizer Bunny––the one who "keeps going and going and going?" It's because he's energized by long-lasting batteries that he has the energy to beat that drum over and over. Someone who's feeling low on energy might be reenergized by a cat nap or a candy bar.

Keep Reading on Vocabulary.com

Vocabulary lists containing energize

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:

Unlike recent contests to lead the nation’s most populous state, this year’s gubernatorial contest failed to energize the electorate.

From Los Angeles Times Jun. 1, 2026

It sidesteps what people at my age know: that as time goes by, we lose many of the connections that once helped energize our younger selves.

From The Wall Street Journal Apr. 18, 2026

The race has become a test of strategy: Crockett argues her combative style will energize turnout, while Talarico presents himself as a bridge to moderates and disaffected Republicans.

From Barron's Mar. 3, 2026

Meanwhile, if announcements at this week’s Consumer Electronics Show “are construed as bullish ‘buy the news’ type events,” that could further energize investors, according to Klein.

From MarketWatch Jan. 5, 2026

The Court's decision was widely criticized by prosecutors and some politicians, and it seemed to energize the victims' rights movement.

From "Just Mercy" by Bryan Stevenson

Another issue that energizes Ms. Dhillon is “aggressive police consent decrees”—legally binding settlements between the Justice Department and local police departments that compel the latter to pursue or avoid certain practices.

From The Wall Street Journal Mar. 27, 2026

In photochemistry, light energizes the catalyst, and the excited catalyst must encounter another molecule through diffusion in order to pass along an electron.

From Science Daily Nov. 26, 2025

Soderbergh’s sleek direction pours over the viewer like smooth espresso and energizes just as much too.

From Salon Mar. 14, 2025

“I’ve performed now for 25 years, a long time ... so honestly I’m comfortable in the circumstances now, where I can look out into an audience — in fact it energizes me, rather than weakens.”

From Los Angeles Times Aug. 18, 2023

The song ends, I catch my breath, and I breathe in everyone’s roaring applause, I breathe in their love, and it energizes me to grab Rufus’s hand while he’s bowing.

From "They Both Die at the End" by Adam Silvera

Renewed Middle East tensions come after the hot memory-chip trade that had energized markets all year has already lost momentum.

From The Wall Street Journal Jul. 8, 2026

Thurston, recently back from a visit to China and meetings with companies, was energized by what she saw.

From Barron's Jun. 23, 2026

An energized Mayor Karen Bass galvanized crowds of labor union workers sporting union merch Saturday.

From Los Angeles Times May 31, 2026

But Talarico, a former middle school teacher and seminarian, has energized Democrats, who hope that record-setting campaign fundraising could help flip the seat.

From Salon May 30, 2026

He seemed unusually, almost exaggeratedly, energized, and gave me an impetuous tickle from behind as he passed, which was out of character.

From "A Walk in the Woods" by Bill Bryson

What they are is addictive, catchy, energizing and undeniable.

From Salon Apr. 4, 2026

“It will allow them to show that they can land a lease and execute on building and energizing capacity.”

From Barron's Jan. 16, 2026

After teammate Brandon Williams made an energizing block at the rim, triggering a fast break, Perry found Skyy Clark for a three-pointer that extended the Bruins’ advantage to double digits.

From Los Angeles Times Dec. 18, 2025

There’s such a tenderness in returning to something you built—it’s equal parts humbling and energizing.

From The Wall Street Journal Dec. 12, 2025

The smoke must have had the same energizing effect on the water monster, who stood firmly on his legs.

From "Healer of the Water Monster" by Brian Young

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