The word(s) "reminder" appears 52 time(s) in 50 verse(s) in Quran in Muhammad Pickthal translation.

(41) Is not the time ripe for the hearts of those who believe to submit to Allah's reminder and to the truth which is revealed, that they become not as those who received the scripture of old but the term was prolonged for them and so their hearts were hardened, and many of them are evil-livers.

(42) Allah hath prepared for them stern punishment; so keep your duty to Allah, O men of understanding! O ye who believe! Now Allah hath sent down unto you a reminder,

(43) And lo! those who disbelieve would fain disconcert thee with their eyes when they hear the reminder, and they say: Lo! he is indeed mad;

(44) When it is naught else than a reminder to creation.

(45) Lo! This is a reminder. Let him who will, then, choose a way unto his Lord.

(46) We have appointed only angels to be wardens of the Fire, and their number have We made to be a stumbling-block for those who disbelieve; that those to whom the Scripture hath been given may have certainty, and that believers may increase in faith; and that those to whom the Scripture hath been given and believers may not doubt; and that those in whose hearts there is disease, and disbelievers, may say: What meaneth Allah by this similitude? Thus Allah sendeth astray whom He will, and whom He will He guideth. None knoweth the hosts of thy Lord save Him. This is naught else than a reminder unto mortals.

(47) By those who bring down the reminder,

(48) Or take heed and so the reminder might avail him?

(49) This is naught else than a reminder unto creation,

(50) Therefor remind (men), for of use is the reminder.