The word(s) "understand" appears 46 time(s) in 46 verse(s) in Quran in Muhammad Pickthal translation.

(41) Lo! We have appointed it a Lecture, in Arabic that haply ye may understand.

(42) Those who were left behind will say, when ye set forth to capture booty: Let us go with you. They fain would change the verdict of Allah. Say (unto them, O Muhammad): Ye shall not go with us. Thus hath Allah said beforehand. Then they will say: Ye are envious of us. Nay, but they understand not, save a little.

(43) Know that Allah quickeneth the earth after its death. We have made clear Our revelations for you, that haply ye may understand.

(44) Ye are more awful as a fear in their bosoms than Allah. That is because they are a folk who understand not.

(45) That is because they believed, then disbelieved, therefore their hearts are sealed so that they understand not.

(46) 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,