红线 hóngxiàn red line Definitions Defs Origin Strokes Stroke Words Sentences Sents hóngxiàn red line · marriage tie · Hong Xian 红 紅 hóng adjective red the color of blood; having a reddish color线 線 xiàn noun thread thread; string; wire; something long and thin like a thread; (bound form) made of cotton threadhóngxiàn boundary 红 紅 hóng adjective red the color of blood; having a reddish color线 線 xiàn noun boundary boundary; demarcation line; frontline; verge; brinkhóngxiàn central theme 红 紅 hóng adjective red the color of blood; having a reddish color线 線 xiàn noun clue (bound form) clue; lead; a thread of information or a person who provides such information