Focus on the pronunciation of challenge
English definition of “challenge”
› [C or U] a job, duty, or situation that is difficult because you must use a lot of effort, determination, and skill in order to be successful: accept/face/meet a challenge After significant losses last year, the company now faces the challenge of trying to repair its reputation with investors.be/pose/present a challenge The weakness of the dollar could pose a challenge to the company's expansion plans. As a software developer he enjoys the challenge of working with cutting-edge technology. She was getting bored at work and felt she needed a new challenge. Finding time to do the work has proven a real challenge. a big/major/serious challenge
› [C] an invitation for someone to compete against you or for you to prove that you can achieve a particular goal: challenge from sb Responding to a challenge from dissident shareholders, the board approved a number of steps to enhance shareholder value.
› [C] an act of asking whether something is true or legal, or whether someone has the authority or right to do something: mount/launch a challenge against Unions are planning to launch a legal challenge against the airline for changing the work schedules of 14,000 cabin crew.