challenge

/ˈtʃæl.əndʒ/

noun

A confrontation; a dare.
A difficult task, especially one that the person making the attempt finds more enjoyable because of that difficulty.
A procedure or action.

verb

To invite (someone) to take part in a competition.
"We challenged the boys next door to a game of football."
To dare (someone).
To dispute (something).
"to challenge the accuracy of a statement or of a quotation"

Practice "challenge" in context

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