詔勅[shouchoku] imperial edict
勅意[chokui] meaning or gist of a decree
勅額[chokugaku] imperial scroll
勅勘[chokkan] the emperor's censure
勅願[chokugan] imperial prayer

勅許[chokkyo] imperial sanction
勅語[chokugo] imperial rescript
勅裁[chokusai] imperial decision or sanction
勅書[chokusho] imperial rescript
勅宣[chokusen] imperial decree

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