The word(s) "lose" appears 75 time(s) in 72 verse(s) in Quran in Mohsin Khan translation.

(31) The hypocrites, men and women, are one from another; they enjoin (on the people) Al-Munkar (i.e. disbelief and polytheism of all kinds and all that Islam has forbidden), and forbid (people) from Al-Ma'ruf (i.e. Islamic Monotheism and all that Islam orders one to do), and they close their hands [from giving (spending in Allah's Cause) alms]. They have forgotten Allah, so He has forgotten them. Verily, the hypocrites are the Fasiqun (rebellious, disobedient to Allah).

(32) Like those before you: they were mightier than you in power, and more abundant in wealth and children. They had enjoyed their portion (awhile), so enjoy your portion (awhile) as those before you enjoyed their portion (awhile); and you indulged in play and pastime (and in telling lies against Allah and His Messenger Muhammad صلى الله عليه وسلم) as they indulged in play and pastime. Such are they whose deeds are in vain in this world and in the Hereafter. Such are they who are the losers.

(33) O you who believe! Fight those of the disbelievers who are close to you, and let them find harshness in you; and know that Allah is with those who are Al-Muttaqun (the pious - See V.2:2).

(34) Their way of request therein will be Subhanaka Allahumma (Glory to You, O Allah!) and Salam (peace, safety from evil) will be their greetings therein (Paradise)! and the close of their request will be: Al-Hamdu Lillahi Rabb-il-'Alamin [All the praises and thanks be to Allah, the Lord of 'Alamin (mankind, jinn and all that exists)].

(35) And be not one of those who belie the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah, for then you shall be one of the losers.

(36) Certainly, they are those who will be the greatest losers in the Hereafter.

(37) Nuh (Noah) said: "O my Lord! I seek refuge with You from asking You that of which I have no knowledge. And unless You forgive me and have Mercy on me, I will indeed be one of the losers."

(38) They said: "If a wolf devours him, while we are a strong group (to guard him), then surely, we are the losers."

(39) And she, in whose house he was, sought to seduce him (to do an evil act), and she closed the doors and said: "Come on, O you." He said: "I seek refuge in Allah (or Allah forbid)! Truly, he (your husband) is my master! He made my living in a great comfort! (So I will never betray him). Verily, the Zalimun (wrong and evil-doers) will never be successful."

(40) And if there had been a Qur'an with which mountains could be moved (from their places), or the earth could be cloven asunder, or the dead could be made to speak (it would not have been other than this Qur'an). But the decision of all things is certainly with Allah. Have not then those who believed yet known that had Allah willed, He could have guided all mankind? And a disaster will not cease to strike those who disbelieved because of their (evil) deeds or it (i.e. the disaster) settles close to their homes, until the Promise of Allah comes to pass. Certainly, Allah breaks not His Promise.