Main entry: challenge
Definition: a demand by a sentry for a password or identification
Main entry: challenge
Definition: questioning a statement and demanding an explanation
Usage: his challenge of the assumption that Japan is still our enemy
Main entry: challenge
Definition: a formal objection to the selection of a particular person as a juror
Main entry: challenge
Definition: a call to engage in a contest or fight
Main entry: challenge
Definition: a demanding or stimulating situation
Usage: they reacted irrationally to the challenge of Russian power
Main entry: challenge, take exception
Definition: raise a formal objection in a court of law
Main entry: challenge
Definition: ask for identification
Usage: The illegal immigrant was challenged by the border guard
Main entry: challenge
Definition: issue a challenge to
Usage: Fischer challenged Spassky to a match
Main entry: challenge, dispute, gainsay
Definition: take exception to
Usage: She challenged his claims