: a strong feeling of interest and enthusiasm that makes someone very eager or determined to do something
She attacked her homework with renewed zeal [=enthusiasm] after getting her first A.
a politician known for his zeal [=passion] for reform
religious/entrepreneurial zeal
The camp counselors enforced regulations with excessive zeal. [=enforced regulations too strictly]
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“Zeal.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/zeal. Accessed 28 Jul. 2026.
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