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Dictionary

chal•leng•ing

Pronunciation: (chal'in-jing), [key]
—adj.
1. offering a challenge; testing one's ability, endurance, etc: a challenging course; a challenging game.
2. stimulating, interesting, and thought-provoking: a challenging suggestion.
3. provocative; intriguing: a challenging smile.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

challenger

challis

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