听墙根 Traditional form: 聽牆根 Pinyin (reading): tīngqiánggēn Definitions: to eavesdrop to listen in secret to sb's conversations Characters: 听 - to hear, to listen; to understand; to obey 墙 - wall 根 - root, basis, foundation Traditional characters: 聽 - to hear, to listen; to understand; to obey 牆 - wall 根 - root, basis, foundation