单行犯 dānxíngfàn first offender Definitions Defs Origin Strokes Stroke Words Sentences Sents 单行 單行 dānxíng to happen alone To occur individually or to travel alone; often used in the idiom 祸不单行 huòbùdānxíng to describe misfortunes that do not come one at a time.犯 fàn noun criminal (bound form) a person who has committed a crime; a prisoner