井の中の蛙、大海を知らず いのなかのかわず、たいかいをしらず Meanings Expression the frog in the well knows nothing of the great ocean Kanji 井 well. Read as い. 中 middle. Read as なか. 蛙 frog. Read as かわず. 大 big. Read as タイ. 海 sea. Read as カイ. 知 know. Read as しる. Word lists Proverbs Jinuma: Japanese Dictionary · Word lists