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.
This question lies at the center of a growing conservation challenge at Monte Leon National Park on Argentina's Patagonian coast.
From Science Daily
The plans are a challenge for a country with no experience operating its own nuclear-powered submarines.
But these past few months have arguably been the most challenging of Howe's stint at the club - on and off the field - and the strain can be traced as far back to the summer.
From BBC
The visit comes after a challenging seven days for the Royal Family, as the Epstein files continue to bring further embarrassment.
From BBC
As they say in horse racing terms, they’re trying to go wire-to-wire, but each faces challenges to reach the Toyota Arena in Ontario for the championship games Feb. 28.
From Los Angeles Times
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.