投敌 Traditional form: 投敵 Pinyin (reading): tóudí Definitions: to go over to the enemy to defect Characters: 投 - to pitch, to throw; to bid, to invest 敌 - enemy, foe, rival; to match; to resist Traditional characters: 投 - to pitch, to throw; to bid, to invest 敵 - enemy, foe, rival; to match; to resist