司马 Traditional form: 司馬 Pinyin (reading): Sīmǎ Definitions: Minister of War (official title in pre-Han Chinese states) two-character surname Sima Characters: 司 - to take charge of, to control, to manage; officer 马 - horse; surname Traditional characters: 司 - to take charge of, to control, to manage; officer 馬 - horse; surname