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.
However, that same protective feature has posed a major challenge for researchers.
From Science Daily
Asked if was considering a White House run, the retired Navy captain said he was considering it "because we're in some seriously challenging times".
From BBC
The "ice facial" has become a social media rite of passage and is half beauty hack, half endurance challenge.
From BBC
His chance at an Olympic medal came down to a much trickier challenge: remembering to put the verb at the end of a sentence.
The 26-year-old has faced additional challenges on social media at the Games.
From Los Angeles Times
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
