whitecap (ˈwaɪtˌkæp)--- n1.a wave with a white broken crest2.( US ) a member of a vigilante organization that attempts to control a community1. A wave with a white broken crest.
2. (US) a member of a vigilante organisation that attempts to control a community.
Source:
Collins English Dictionary - Complete & Unabridged 10th Edition
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