書留郵便 かきとめゆうびん Meanings Noun registered mail; registered post Kanji 書 write. Read as かく. 留 stay. Read as とめる. 郵 mail. Read as ユウ. 便 mail. Read as ビン. Words containing 書留郵便 親展書留郵便 (しんてんかきとめゆうびん) registered mail to addressee in person Jinuma: Japanese Dictionary · Word lists