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.
Scientists have uncovered an unexpected way the immune system can attack cancer, a finding that challenges a long-standing principle in immunology and could lead to new approaches for cancer treatment and bone marrow transplantation.
From Science Daily • Jun. 4, 2026
A doppelganger challenges Senator Dan Sullivan, in a bid to confuse Last Frontier voters in a ranked-choice voting system.
From The Wall Street Journal • Jun. 3, 2026
One of the biggest challenges remains charging infrastructure.
From BBC • Jun. 3, 2026
Analysts note that Section 301 tariffs have been less vulnerable to court challenges.
From Barron's • Jun. 3, 2026
We filed similar challenges to life-without-parole sentences in several other cases involving children, including Ian Manuel's case.
From "Just Mercy" by Bryan Stevenson
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