zeal 
/ˈzi:l/ noun
/ˈzi:l/ noun [noncount] : 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]
▪ 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]
