共きょう同どう防ぼう衛えいMeaningsNoun1. joint defense; joint defenceKanji used共together同same防prevent衛defendComposed of共きょう同どうcooperation; collaboration; association; partnership; (acting in) unison; community; communal use; common possession; sharingNoun防ぼう衛えいdefense; defence; protectionNoun