下くだり便びんMeaningsNoun1. down train; outbound trainKanji used下below便convenienceComposed of下くだりdown-train; train heading toward the ending point of its route; down-slope; downward going; downbound (esp. away from Tokyo); downstream; downhillNoun便びんflight (e.g. airline flight); trip (e.g. train trip); sailing (e.g. ferry voyage); service; mail; post; letter; opportunity; chanceNoun