Bedeutung von “challenge” im Essential American English Dictionary

challenge

verb us /ˈtʃæl·əndʒ/ present participle challenging, past tense and past participle challenged

to tell someone you do not accept his or herrules or you think he or she is wrong:

The election results are being challenged.

to ask someone to compete in a game or fight:

He challenged / me to a game of tennis.

(Definition von “challenge verb” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)