The word(s) "acquainted" appears 52 time(s) in 52 verse(s) in Quran in Abdullah Yusuf Ali translation.

(41) Nay, is he not acquainted with what is in the Books of Moses-

(42) And what cause have ye why ye should not spend in the cause of Allah?- For to Allah belongs the heritage of the heavens and the earth. Not equal among you are those who spent (freely) and fought, before the Victory, (with those who did so later). Those are higher in rank than those who spent (freely) and fought afterwards. But to all has Allah promised a goodly (reward). And Allah is well acquainted with all that ye do.

(43) But those who divorce their wives by Zihar, then wish to go back on the words they uttered,- (It is ordained that such a one) should free a slave before they touch each other: Thus are ye admonished to perform: and Allah is well-acquainted with (all) that ye do.

(44) O ye who believe! When ye are told to make room in the assemblies, (spread out and) make room: (ample) room will Allah provide for you. And when ye are told to rise up, rise up Allah will rise up, to (suitable) ranks (and degrees), those of you who believe and who have been granted (mystic) Knowledge. And Allah is well-acquainted with all ye do.

(45) Is it that ye are afraid of spending sums in charity before your private consultation (with him)? If, then, ye do not so, and Allah forgives you, then (at least) establish regular prayer; practise regular charity; and obey Allah and His Messenger. And Allah is well-acquainted with all that ye do.

(46) O ye who believe! Fear Allah, and let every soul look to what (provision) He has sent forth for the morrow. Yea, fear Allah: for Allah is well-acquainted with (all) that ye do.

(47) But to no soul will Allah grant respite when the time appointed (for it) has come; and Allah is well acquainted with (all) that ye do.

(48) Believe, therefore, in Allah and His Messenger, and in the Light which we have sent down. And Allah is well acquainted with all that ye do.

(49) When the Prophet disclosed a matter in confidence to one of his consorts, and she then divulged it (to another), and Allah made it known to him, he confirmed part thereof and repudiated a part. Then when he told her thereof, she said, "Who told thee this? "He said, "He told me Who knows and is well-acquainted (with all things)."

(50) Should He not know,- He that created? and He is the One that understands the finest mysteries (and) is well-acquainted (with them).