The word(s) "separate" appears 13 time(s) in 12 verse(s) in Quran in Mohsin Khan translation.

(1) And (remember) when We separated the sea for you and saved you and drowned Fir'aun's (Pharaoh) people while you were looking (at them, when the sea-water covered them).

(2) But if they separate (by divorce), Allah will provide abundance for everyone of them from His Bounty. And Allah is Ever All-Sufficient for His creatures' need, All-Wise.

(3) He [Musa (Moses)] said: "O my Lord! I have power only over myself and my brother, so separate us from the people who are the Fasiqun (rebellious and disobedient to Allah)!"

(4) They (the Jews, Quraish pagans, idolaters) did not estimate Allah with an estimation due to Him when they said: "Nothing did Allah send down to any human being (by revelation)." Say (O Muhammad صلى الله عليه وسلم): "Who then sent down the Book which Musa (Moses) brought, a light and a guidance to mankind which you (the Jews) have made into (separate) papersheets, disclosing (some of it) and concealing much. And you (believers in Allah and His Messenger Muhammad صلى الله عليه وسلم) were taught (through the Qur'an) that which neither you nor your fathers knew." Say: "Allah (sent it down)." Then leave them to play in their vain discussions. (Tafsir Al-Qurtubi).

(5) "And verily, this (i.e. Allah's Commandments mentioned in the above two Verses 151 and 152) is My Straight Path, so follow it, and follow not (other) paths, for they will separate you away from His Path. This He has ordained for you that you may become Al-Muttaqun (the pious - see V.2:2)."

(6) And We have broken them (i.e. the Jews) up into various separate groups on the earth: some of them are righteous and some are away from that. And We tried them with good (blessings) and evil (calamities) in order that they might turn (to Allah's Obedience).

(7) And the Day whereon We shall gather them all together, then We shall say to those who did set partners in worship with Us: "Stop at your place! You and your partners (whom you had worshipped in the worldly life)." then We shall separate them, and their (Allah's so-called) partners shall say: "It was not us that you used to worship."

(8) So it (the ship) sailed with them amidst waves like mountains, and Nuh (Noah) called out to his son, who had separated himself (apart): "O my son! Embark with us and be not with the disbelievers."

(9) Then We revealed to Musa (Moses) (saying): "Strike the sea with your stick." And it parted, and each separate part (of that sea water) became like huge mountain.

(10) And on the Day when the Hour will be established - that Day shall (all men) be separated (i.e. the believers will be separated from the disbelievers).