郵便差出箱 ゆうびんさしだしばこ Also written 郵便差し出し箱 Meanings Noun postbox; mailbox; mail box See also: ポスト. Kanji 郵 mail. Read as ユウ. 便 mail. Read as ビン. 差 gap. Read as さす. 出 out. Read as だす. 箱 box. Read as はこ. Jinuma: Japanese Dictionary · Word lists