The word(s) "barrier" appears 5 time(s) in 5 verse(s) in Quran in Muhammad Pickthal translation.

(1) And when thou recitest the Qur'an we place between thee and those who believe not in the Hereafter a hidden barrier;

(2) They said: O Dhu'l-Qarneyn! Lo! Gog and Magog are spoiling the land. So may we pay thee tribute on condition that thou set a barrier between us and them?

(3) That I may do right in that which I have left behind! But nay! It is but a word that he speaketh; and behind them is a barrier until the day when they are raised.

(4) Is not He (best) Who made the earth a fixed abode, and placed rivers in the folds thereof, and placed firm hills therein, and hath set a barrier between the two seas? Is there any Allah beside Allah? Nay, but most of them know not!

(5) There is a barrier between them. They encroach not (one upon the other).