纵火 Traditional form: 縱火 Pinyin (reading): zònghuǒ Definitions: to set on fire to commit arson Characters: 纵 - to indulge in, to give free reign to 火 - fire, flame; to burn; anger, rage Traditional characters: 縱 - to indulge in, to give free reign to 火 - fire, flame; to burn; anger, rage