challenge (EN)

noun, verb

noun “challenge”

1. a hard task that tests someone's skill or abilities
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   For many puzzle enthusiasts, solving a Rubik's Cube is a challenge they gladly embrace.
2. an effort to defeat or stand up against an authority
   What the duke did was a challenge to the king's authority.
3. a formal invitation to engage in a duel
   He received a challenge from his rival, demanding satisfaction for the insult in the form of a duel.
4. in sports, an attempt to gain control of the ball or stop an opponent
   The defender's strong challenge prevented the striker from scoring a goal.
5. an effort to restrict or remove a book from a library or school
   Parents issued a challenge against the inclusion of the controversial book in the school's reading program.
6. questioning a legal ruling or decision
   The defense lawyer filed a challenge to the court's ruling, claiming it was unjust.

verb “challenge”

1. asking someone to compete in a contest
   We challenged the boys next door to a game of football to see who really owned the field.
2. daring someone to do something
   "I challenge you to prove your claim," said the skeptic, doubting the magician's abilities.
3. to argue against the truth or validity of something
   The scientist decided to challenge the accuracy of the data presented in the recent study.
4. to be difficult for
   The topic has clearly challenged many commentators, who struggled to explain the complex issue.
5. in law, formally objecting to a potential juror
   The attorney decided to challenge a juror who appeared to be biased during the selection process.
6. in the military, asking for a password or identification from someone
   The sentinel challenged us with "Who goes there?" as we approached the military checkpoint in the dark.