The word(s) "sin" appears 346 time(s) in 329 verse(s) in Quran in Abdullah Yusuf Ali translation.

(321) When the stars fall, losing their lustre;

(322) And none can deny it but the Transgressor beyond bounds the sinner!

(323) Those in sin used to laugh at those who believed,

(324) "Come back thou to thy Lord,- well pleased (thyself), and well-pleasing unto Him!

(325) And (in all sincerity) testifies to the best,-

(326) And the Mount of sinai,

(327) A lying, sinful forelock!

(328) An messenger from Allah, rehearsing scriptures kept pure and holy:

(329) And they have been commanded no more than this: To worship Allah, offering Him sincere devotion, being true (in faith); to establish regular prayer; and to practise regular charity; and that is the Religion Right and Straight.