He wants to challenge you to a race around the track.
The diet will be a challenge, but you can do it.
It was a challenge to find the penny in the haystack.
Taking regents or S.A.T.s can be a challenge for high school students.
Climbing the mountain would be a challenge but it is possible.
I put the word wool in a ten word sentence.
see How do you put the word countries in a sentence?
The word is put in a sentence like I just did right now.
you have just put it in a sentence....
yes you can put in a sentence
No one dare challenge her absolute authority
How do you put dissent in a sentence How do you put dissent in a sentence
Janet always enjoyed a challenge.The sports challenge looked good this year.I will challenge your decision.
In the sentence that you give, the word challenge is used as a noun.