城を枕に討ち死に しろをまくらにうちじに Also written 城を枕に討死 Meanings Expression, する verb, Intransitive fighting to the bitter end; going down with the ship (literally: remaining in one's castle and fighting to the end) Kanji 城 castle. Read as しろ. 枕 pillow. Read as まくら. 討 debate. Read as うつ. 死 die. Read as しに. Jinuma: Japanese Dictionary · Word lists