Definitions

1. noun

something that is difficult to do or achieve; a test of one’s abilities or strength

“She accepted the challenge to run a marathon in under three hours.”

2. verb

to issue a challenge to someone or something; to test or try someone’s abilities or strength

“He challenged the reigning champion to a match.”

3. verb

to give or take something as a test or trial; to try or attempt something

“The professor challenged the students to solve the complex math problem.”

4. noun

an instance or occurrence of a particular problem or difficulty; a test or trial of someone’s abilities or strength

“The challenge of climbing Mount Everest proved too great for many adventurers.”