Nantoka/正弦zhèng xián正弦 (zhèng xián) is a Chinese word meaning “(math.) sine”.Meanings1(math.) sineCharacters in 正弦正zhēng · first month of the lunar year弦xián · bow stringRelated words正first month of the lunar year正straight真正genuine; real; true正在to be in the process of (doing sth); to be currently ...-ing正常normal; regular正确correct; sound; right; proper反正anyway正是is precisely正好just (in time)正式formal; official正义justice公正just; fair; equitableStudy Chinese with flashcards →