信筒 Save Sign in to save words xìntǒng ㄒㄧㄣˋ ㄊㄨㄥˇ 男 女 mailbox postbox Character by character 信(xìn)letter 筒(tǒng)tube Other words read xìntǒng xintong with other tones 心痛 Often confused with xintong 形同 A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0