海洋哨戒機 かいようしょうかいき Meanings Noun maritime patrol aircraft; MPA Kanji 海 sea. Read as カイ. 洋 ocean. Read as ヨウ. 哨 scout; sentinel. Read as ショウ. 戒 admonish. Read as カイ. 機 machine. Read as キ. Jinuma: Japanese Dictionary · Word lists