challenge
Example Sentences
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It's back-to-school time again - and families brace for the challenge of swapping summer lie-ins for school routines, easing first-day nerves and getting ready for the year ahead.
From BBC β Aug. 30, 2026
The challenge was finding a mathematical description that could reproduce what the simulations revealed.
From Science Daily β Aug. 30, 2026
David Smith, a former design manager at General Motors, said sunroofs present an engineering challenge: cutting a hole out of a car’s roof while maintaining the vehicle’s stability and integrity.
From The Wall Street Journal β Aug. 30, 2026
It’s a challenge complicated by his vocal Democratic wife, supermodel and entrepreneur Karlie Kloss.
From Los Angeles Times β Aug. 30, 2026
“Ah, I knew you’d step up to the challenge, my lad.”
From "The City Beautiful" by Aden Polydoros
"Understanding how gravity and quantum mechanics fit together is one of the greatest challenges in physics," concludes Foo.
From Science Daily β Aug. 30, 2026
At the Schererville location, franchisee Keith Mitchell said the transition has brought challenges and benefits.
From The Wall Street Journal β Aug. 30, 2026
“Our challenges have changed in scale,” he said.
From Los Angeles Times β Aug. 30, 2026
In simplified terms, RCS challenges a quantum computer to generate patterns that become so complicated that a classical computer cannot efficiently reproduce them.
From Science Daily β Aug. 30, 2026
Across the president’s desk in the Oval Office, Eisenhower warned Kennedy of the many Cold War challenges ahead.
From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin
“We’re going to need the depth of this roster,” Riley said, “and we obviously challenged that in the fourth quarter, and obviously didn’t respond the way we wanted.”
From Los Angeles Times β Aug. 29, 2026
They played a match with Curry and challenged DeChambeau, one of the game’s biggest hitters, to a long-driving competition.
From The Wall Street Journal β Aug. 29, 2026
While the long-term outlook for the U.S. government-bond market remains challenged, savvy traders appear to be positioning for a rebound in the weeks and months ahead.
From MarketWatch β Aug. 27, 2026
Quantum mechanics has long challenged the familiar idea that an object must occupy one precise place at a given moment.
From Science Daily β Aug. 24, 2026
Like many other amateur code breakers, he challenged her to break some messages in a new system that he himself had devised.
From "The Woman All Spies Fear" by Amy Butler Greenfield
PVC is especially challenging to recycle because it contains chlorine and can include a wide range of additives depending on how it was manufactured.
From Science Daily β Aug. 29, 2026
They will become more challenging as the climate warms, scientists say, adding heat to a planet where some extreme-weather events are already intensifying.
From The Wall Street Journal β Aug. 29, 2026
Tove Taalesen, royal correspondent for Nettavisen, believes the scandals will be challenging but Haakon is "very much ready for the task".
From BBC β Aug. 28, 2026
Then, on Wednesday, Bonta, who is seeking reelection in November, announced the latest lawsuit challenging the merits of the Postal Service rules, which he noted had been formally issued last week.
From Los Angeles Times β Aug. 28, 2026
“One must live,” she repeated, defiant, challenging, sensing reproach where none could be; for it is very true, one must live.
From "Nectar in a Sieve" by Kamala Markandaya
Vocabulary lists containing challenge
List 2
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The SAT: Language of the Test, List 4
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Academic Vocabulary Toolkit 1, Words 11-20
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