1
challenge
verb
- to say or show that (something) may not be true, correct, or legal : dispute
- to question the action or authority of (someone)
- to question whether (someone) should serve on a jury
2
challenge
noun
- a difficult task or problem : something that is hard to do
- an action, statement, etc., that is against something : a refusal to accept something as true, correct, or legal—often + to
- an invitation to compete in a game, fight, etc.
