challenge

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.

New research reveals that bull sharks form social relationships with specific "friends," challenging the long-standing belief that these predators live mostly solitary lives.

From Science Daily

Morocco’s federation, which had formally protested the result, said that it “never intended to challenge the sporting performance of the teams,” but didn’t deny that it was hoping for this very outcome.

From The Wall Street Journal

Dissents sometimes amount to a challenge to the chair’s leadership.

From The Wall Street Journal

Another challenge is that weight loss often reverses once the drugs stop.

From BBC

The challenges from his learning disorder persist in his work at the state Capitol.

From Los Angeles Times