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

"Unfortunately, due to dyslexia people can only thrive in certain places," she says, adding there are challenges because of language being used everywhere.

From BBC • Jun. 3, 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

“As AI workloads continue to scale and drive unprecedented demand for compute, power delivery has become one of the most critical challenges in enabling next-generation gigawatt AI factories,” said CEO Chris Allexandre in the statement.

From Barron's • Jun. 3, 2026

He saw that he had a donor he could trust, maybe a WL who could be educated about the real challenges of abating poverty.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French