challenge

take exception to

“She challenged his claims”

raise a formal objection in a court of law

a call to engage in a contest or fight

a demand by a sentry for a password or identification

a demanding or stimulating situation

“they reacted irrationally to the challenge of Russian power”

a formal objection to the selection of a particular person as a juror

ask for identification

“The illegal immigrant was challenged by the border guard”

issue a challenge to

“Fischer challenged Spassky to a match”

questioning a statement and demanding an explanation

“his challenge of the assumption that Japan is still our enemy”