The word(s) "while" appears 218 time(s) in 214 verse(s) in Quran in Mohsin Khan translation.

(151) So they plotted a plot, and We plotted a plot, while they perceived not.

(152) And (remember) Lut (Lot)! When he said to his people. Do you commit Al-Fahishah (evil, great sin, every kind of unlawful sexual intercourse, sodomy) while you see (one another doing evil without any screen)?"

(153) And she said to his [Musa's (Moses)] sister: "Follow him." So she (his sister) watched him from a far place secretly, while they perceived not.

(154) And indeed We sent Nuh (Noah) to his people, and he stayed among them a thousand years less fifty years [inviting them to believe in the Oneness of Allah (Monotheism), and discard the false gods and other deities]; and the Deluge overtook them while they were Zalimun (wrong-doers, polytheists, disbelievers).

(155) And they ask you to hasten on the torment (for them): and had it not been for a term appointed, the torment would certainly have come to them. And surely, it will come upon them suddenly while they perceive not!

(156) Have they not seen that We have made (Makkah) a secure sanctuary, while men are being snatched away from all around them? Then do they believe in Batil (falsehood - polytheism, idols and all deities other than Allah), and deny (become ingrate for) the Graces of Allah?

(157) And whosoever submits his face (himself) to Allah, while he is a Muhsin (good-doer i.e. performs good deeds totally for Allah's sake without any show off or to gain praise or fame and does them in accordance with the Sunnah of Allah's Messenger Muhammad صلى الله عليه وسلم), then he has grasped the most trustworthy handhold [La ilaha illallah (none has the right to be worshipped but Allah)]. And to Allah return all matters for decision.

(158) We let them enjoy for a little while, then in the end We shall oblige them to (enter) a great torment.

(159) Say (O Muhammad صلى الله عليه وسلم to these hypocrites who ask your permission to run away from you): "Flight will not avail you if you flee from death or killing and then you will enjoy no more than a little while!"

(160) Allah already knows those among you who keep back (men) from fighting in Allah's Cause, and those who say to their brethren "Come here towards us," while they (themselves) come not to the battle except a little,