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

御辞儀[ojigi] bow
御世辞[oseji] flattery
引責辞任[insekijinin] taking responsibility upon oneself (and resigning)
英和辞典[eiwajiten] English-Japanese dictionary
冠辞[kanji] stereotyped epithet

漢英辞典[kaneijiten] Kanji to English dictionary
疑辞[giji] questionable word
訓辞[kunji] admonitory speech (e.g. to students)
固辞[koji] decline positively

異類[irui] varieties
一類[ichirui] same kind
円虫類[enchuurui] round worms
塩類[enrui] salts
塩類溶液[enruiyoueki] saline

貝類[kairui] shellfish
柑橘類[kankitsurui] citrus fruits
希土類[kidorui] rare earth
魚貝類[gyokairui] marine products
魚類[gyorui] fish