The word(s) "back" appears 262 time(s) in 241 verse(s) in Quran in Muhammad Habib Shakir translation.

(81) They will excuse themselves to you when you go back to them. Say: Urge no excuse, by no means will we believe you; indeed Allah has informed us of matters relating to you; and now Allah and His Apostle will see your doings, then you shall be brought back to the Knower of the unseen and the seen, then He will inform you of what you did.

(82) And from among those who are round about you of the dwellers of the desert there are hypocrites, and from among the people of Medina (also); they are stubborn in hypocrisy; you do not know them; We know them; We will chastise them twice then shall they be turned back to a grievous chastisement

(83) And say: Work; so Allah will see your work and (so will) His Apostle and the believers; and you shall be brought back to the Knower of the unseen and the seen, then He will inform you of what you did.

(84) And it does not beseem the believers that they should go forth all together; why should not then a company from every party from among them go forth that they may apply themselves to obtain understanding in religion, and that they may warn their people when they come back to them that they may be cautious?

(85) But if they turn back, say: Allah is sufficient for me, there is no god but He; on Him do I rely, and He is the Lord of mighty power.

(86) There shall every soul become acquainted with what it sent before, and they shall be brought back to Allah, their true Patron, and what they devised shall escape from them.

(87) This then is Allah, your true Lord; and what is there after the truth but error; how are you then turned back?

(88) He gives life and causes death, and to Him you shall be brought back.

(89) But if you turn back, I did not ask for any reward from you; my reward is only with Allah, and I am commanded that I should be of those who submit.

(90) And you that ask forgiveness of your Lord, then turn to Him; He will provide you with a goodly provision to an appointed term and bestow His grace on every one endowed with grace, and if you turn back, then surely I fear for you the chastisement of a great day.