The word(s) "curved" appears 3 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) "You will see therein nothing crooked or curved."

(2) And the moon, We have measured for it mansions (to traverse) till it returns like the old dried curved date stalk.

(3) And remember (Hud) the brother of 'Ad, when he warned his people in Al-Ahqaf (the curved sand-hills in the southern part of Arabian Peninsula). And surely, there have passed away warners before him and after him (saying): "Worship none but Allah; truly, I fear for you the torment of a mighty Day (i.e. the Day of Resurrection)."