端到端 duāndàoduān end-to-end Origin Definitions Defs Strokes Stroke Words Sentences Sents 端 duān nounlocative extremity (bound form) the end, tip, or extremity of an object到 dào preposition to used as a preposition meaning "to", "until", or "up to"端 duān nounlocative extremity (bound form) the end, tip, or extremity of an object