大津波 おおつなみ Meanings Noun giant tsunami (over 3m in height according to the JMA definition); giant tidal wave Kanji 大 big. Read as おお. 津 port 波 wave. Read as なみ. Common phrases 大津波が襲う Words containing 大津波 大津波警報 (おおつなみけいほう) major tsunami warning Jinuma: Japanese Dictionary · Word lists