challenge
— Verb
– English
~ raise a formal objection in a court of law
challenge
— Verb
– English
~ take exception to; "She challenged his claims"
challenge
— Verb
– English
~ ask for identification; "The illegal immigrant was challenged by the border guard"
challenge
— Noun
– English
~ a formal objection to the selection of a particular person as a juror
challenge
— Noun
– English
~ a demand by a sentry for a password or identification
challenge
— Noun
– English
~ questioning a statement and demanding an explanation; "his challenge of the assumption that Japan is still our enemy"
challenge
— Noun
– English
~ a call to engage in a contest or fight
challenge
— Noun
– English
~ a demanding or stimulating situation; "they reacted irrationally to the challenge of Russian power"
challengeable
— Adjective
– English
~ capable of being challenged
challenger
— Noun
– English
~ the contestant you hope to defeat; "he had respect for his rivals"; "he wanted to know what the competition was doing"
challenging
— Adjective
– English
~ stimulating interest or thought; "a challenging hypothesis"; "a thought-provoking book"
challenging
— Adjective
– English
~ requiring full use of your abilities or resources; "ambitious schedule"; "performed the most challenging task without a mistake"