The word(s) "bar" appears 90 time(s) in 86 verse(s) in Quran in Mohsin Khan translation.

(61) So set you (O Muhammad صلى الله عليه وسلم) your face towards the religion (of pure Islamic Monotheism) Hanif (worship none but Allah Alone). Allah's Fitrah (i.e. Allah's Islamic Monotheism) with which He has created mankind. No change let there be in Khalq-illah (i.e. the religion of Allah - Islamic Monotheism): that is the straight religion, but most of men know not. [Tafsir At-Tabari]

(62) And if We send a wind [which would spoil the green growth (tilth) brought up by the previous rain], and they see (their tilth) turn yellow - behold, they then (after their being glad,) would become unthankful (to their Lord Allah as) disbelievers. [Tafsir At-Tabari]

(63) And a barrier will be set between them and that which they desire [i.e. At-Taubah (turning to Allah in repentance) and the accepting of Faith], as was done in the past with the people of their kind. Verily, they have been in grave doubt.

(64) And We have put a barrier before them, and a barrier behind them, and We have covered them up, so that they cannot see.

(65) This Day, We shall seal up their mouths, and their hands will speak to Us, and their legs will bear witness to what they used to earn. (It is said that one's left thigh will be the first to bear the witness). [Tafsir At-Tabari,]

(66) And among His Signs (in this), that you see the earth barren; but when We send down water (rain) to it, it is stirred to life and growth (of vegetations). Verily, He Who gives it life, surely, is Able to give life to the dead (on the Day of Resurrection). Indeed He is Able to do all things.

(67) And those who dispute (polytheists with Our Messenger Muhammad صلى الله عليه و سلم) as regards Our Ayat (proofs, signs, verses, etc. of Islamic Monotheism) may know that there is no place of refuge for them (from Allah's punishment) [Tafsir At-Tabari].

(68) And you will see them brought forward to it (Hell) made humble by disgrace, (and) looking with stealthy glance. And those who believe will say: "Verily, the losers are they who lose themselves and their families on the Day of Resurrection. Verily, the Zalimun [i.e. Al-Kafirun (disbelievers in Allah, in His Oneness and in His Messenger صلى الله عليه و سلم, polytheists, wrong-doers)] will be in a lasting torment. (Tafsir At-Tabari).

(69) Or He bestows both males and females, and He renders barren whom He wills. Verily, He is the All-Knower and is Able to do all things.

(70) And if it were Our Will, We would have [destroyed you (mankind) all, and] made angels to replace you on the earth. [Tafsir At-Tabari].