Noun
Calls for someone to compete
“He was ready to accept any challenges put to him by his rivals.”
Noun
Calls to prove or justify something
“The skeptic mounted several challenges to the claims made by conspiracy theorists.”
Noun
Tests of someone's abilities or internal fortitude
“He had the responsibility of taking on many challenges as part of his job.”
Noun
Issues or problems requiring resolution
“There were many political and economic challenges in the region that had to be addressed.”
Noun
Competitive events
“Many interesting and colorful challenges are held around the world annually.”
Verb
To dispute the validity of
“The defendant's lawyer then challenges the evidence presented by the prosecutor.”
Verb
To invite someone to engage in a contest
“She regularly challenges me to a game of chess.”
Verb
To make demands or prove testing on
“Their holidays in the woods without Wi-Fi really challenges the kids.”
Verb
(rare) To have as a requirement
“Having a demanding boss challenges anyone's patience.”
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