challenge

Take exception to.

“She challenged his claims”

Raise a formal objection in a court of law.

Ask for identification.

“The illegal immigrant was challenged by the border guard”

Issue a challenge to.

“Fischer challenged Spassky to a match”

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.

Questioning a statement and demanding an explanation.

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