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to invite someone to compete or strongly suggest they should do something, often to test their abilities or encourage action
to question or dispute something, especially by arguing that it is unjust or outdated
to object to the legality or acceptability of something
to ask someone to prove their identity, often to verify they are allowed to enter or pass
a difficult and new task that puts one's skill, ability, and determination to the test
an invitation that provokes or calls out someone to engage in a contest or an argument
questioning a statement and demanding an explanation
a formal objection to the selection of a particular person as a juror
a demand by a sentry for a password or identification
challenge
challenged
challenged
challenger
challenger
challenging
challenging
