海坊主 うみぼうず Meanings Noun umibōzu; sea yōkai, resembling a huge bald-headed black figure; sea monster; sea goblin green turtle See also: アオウミガメ. Kanji 海 sea. Read as うみ. 坊 boy. Read as ボウ. 主 main. Read as ス. Word lists Japanese mythology Jinuma: Japanese Dictionary · Word lists