快件 kuàijiàn express mail Definitions Defs Origin Strokes Stroke Words Sentences Sents kuàijiàn express mail 快 kuài adjective fast rapid; quick; at high speed件 jiàn noun document (bound form) a document, letter, or piece of correspondence; used in words like 文件 wénjiàn or 信件 xìnjiànkuàijiàn item 快 kuài adjective fast rapid; quick; at high speed件 jiàn noun item an individual item, part, or component