だいよんしゅゆうびんぶつ 第四種郵便物 LinksSentence search for 第四種郵便物Sentence search for だいよんしゅゆうびんぶつKanji details for 第, 四, 種, 郵, 便 and 物Edit in JMdict Noun1. fourth-class mail Discussions Log in to talk about this word.