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

アジア太平洋地域[ajiataiheiyouchiiki] Asia-Pacific region
印度洋[indoyou] Indian Ocean
遠洋[enyou] ocean
遠洋漁業[enyougyogyou] deep-sea fisheries
仮装巡洋艦[kasoujunyoukan] merchant cruiser

海洋[kaiyou] ocean
海洋科学[kaiyoukagaku] marine science
五大洋[gotaiyou] the Five Oceans (Pacific, Atlantic, Indian, Southern, and Arctic)
三洋[sanyou] Sanyo (company)
巡洋艦[junyoukan] cruiser