金城湯池 きんじょうとうち Meanings Noun an impregnable fortress; an unassailable territory Kanji 金 money. Read as キン. 城 castle. Read as ジョウ. 湯 hot water. Read as トウ. 池 pond. Read as チ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists