愛書[aisho] great love of books
愛読書[aidokusho] favourite book
悪書[akusho] harmful book
案内書[annaisho] guidebook
移動図書館[idoutoshokan] mobile library

遺言書[yuigonsho] testament
遺書[isho] note left by dead person
医書[isho] medical book
一つ書き[hitotsugaki] an item
一書[issho] one letter

陥没[kanbotsu] cave-in
収没[shuubotsu] confiscation of possessions
出没[shutsubotsu] appearing frequently
神出鬼没[shinshutsukibotsu] appearing in unexpected places and at unexpected moments
水没[suibotsu] submerge

戦没[senbotsu] death in battle
戦没者[senbotsusha] persons who have fallen in battle
戦没者追悼記念日[senbotsushatsuitoukinenbi] Memorial Day (US)
沈没[chinbotsu] sinking
日没[nichibotsu] sunset