南海 なんかい Meanings Noun southern sea Kanji 南 south. Read as ナン. 海 sea. Read as カイ. Words containing 南海 南海地震 (なんかいじしん) 1946 Nankaido earthquake 南海トラフ (なんかいトラフ) Nankai Trough 南海トラフ巨大地震 (なんかいトラフきょだいじしん) Nankai megathrust earthquake And 3 more. Jinuma: Japanese Dictionary · Word lists