challenges
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.
This challenges Dollo’s law, which holds that once a complex trait disappears, it cannot re-evolve.
From Science Daily • May 21, 2026
OpenAI will have to overcome a host of other challenges, namely concerns about whether the company will be able to generate enough revenue to support its giant data-center spending commitments.
From The Wall Street Journal • May 20, 2026
"We welcome its message that we must be hopeful and realise the benefits of action despite the serious challenges ahead," a spokesperson added.
From BBC • May 20, 2026
Google Gemini spent the past year clawing its way to a seat at the table alongside OpenAI and Anthropic, but its cutting-edge reputation is facing challenges today.
From MarketWatch • May 20, 2026
Charles and James had in common one of life's most difficult challenges.
From "Ambushed!" by Gail Jarrow
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