A challenge is something that puts you to the test †like running your first marathon or reading war and peace. A challenge is something new and difficult which requires great effort and determination. I like a big challenge and they don't come much bigger than this.

A call or summons to engage in any contest, as of skill, strength, etc. See examples of challenge used in a sentence. Definition of challenge noun in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. A demand for explanation or justification; A calling into question. The meaning of challenge is to dispute especially as being unjust, invalid, or outmoded :

A demand for explanation or justification; A calling into question. The meaning of challenge is to dispute especially as being unjust, invalid, or outmoded : How to use challenge in a sentence. (the situation of being faced with) something that needs great mental or physical effort in…. Learn more.

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