Definition of Jaycee noun from the Oxford Advanced American Dictionary

 

Jaycee

 noun
noun
NAmE//ˌdʒeɪˈsi//
 
(informal)
 
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a member of the United States Junior Chamber, an organization for people between the ages of 18 and 41 that provides help in local communities in the U.S. and other countries
See the Oxford Advanced Learner's Dictionary entry: Jaycee