The word(s) "understanding" appears 37 time(s) in 37 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) But He fashioned him in due proportion, and breathed into him something of His spirit. And He gave you (the faculties of) hearing and sight and feeling (and understanding): little thanks do ye give!

(22) (Here is) a Book which We have sent down unto thee, full of blessings, that they may mediate on its Signs, and that men of understanding may receive admonition.

(23) And We gave him (back) his people, and doubled their number,- as a Grace from Ourselves, and a thing for commemoration, for all who have understanding.

(24) Is one who worships devoutly during the hour of the night prostrating himself or standing (in adoration), who takes heed of the Hereafter, and who places his hope in the Mercy of his Lord - (like one who does not)? Say: "Are those equal, those who know and those who do not know? It is those who are endued with understanding that receive admonition.

(25) Those who listen to the Word, and follow the best (meaning) in it: those are the ones whom Allah has guided, and those are the ones endued with understanding.

(26) Seest thou not that Allah sends down rain from the sky, and leads it through springs in the earth? Then He causes to grow, therewith, produce of various colours: then it withers; thou wilt see it grow yellow; then He makes it dry up and crumble away. Truly, in this, is a Message of remembrance to men of understanding.

(27) A Guide and a Message to men of understanding.

(28) Then seest thou such a one as takes as his god his own vain desire? Allah has, knowing (him as such), left him astray, and sealed his hearing and his heart (and understanding), and put a cover on his sight. Who, then, will guide him after Allah (has withdrawn Guidance)? Will ye not then receive admonition?

(29) Those who shout out to thee from without the inner apartments - most of them lack understanding.

(30) "What! When we die and become dust, (shall we live again?) That is a (sort of) return far (from our understanding)."