防ぼう空くう識しき別べつ圏けんMeaningsNoun1. air defense identification zone; ADIZKanji used防prevent空empty air識be conscious of別separate圏area of influenceComposed of防ぼう空くうair defense; air defenceNoun識しき別べつdistinction; discrimination; discernment; identificationNoun圏けんsphere; circle; range; area; zone; bloc; categorySuffix