The word(s) "severe" appears 60 time(s) in 60 verse(s) in Quran in Muhammad Habib Shakir translation.

(51) Know that this world's life is only sport and play and gaiety and boasting among yourselves, and a vying in the multiplication of wealth and children, like the rain, whose causing the vegetation to grow, pleases the husbandmen, then it withers away so that you will see it become yellow, then it becomes dried up and broken down; and in the hereafter is a severe chastisement and (also) forgiveness from Allah and (His) pleasure; and this world's life is naught but means of deception.

(52) Allah has prepared for them a severe punishment; surely what they do is evil.

(53) That is because they acted in opposition to Allah and His Apostle, and whoever acts in opposition to Allah, then surely Allah is severe in retributing (evil).

(54) Whatever Allah has restored to His Apostle from the people of the towns, it is for Allah and for the Apostle, and for the near of kin and the orphans and the needy and the wayfarer, so that it may not be a thing taken by turns among the rich of you, and whatever the Apostle gives you, accept it, and from whatever he forbids you, keep back, and be careful of (your duty to) Allah; surely Allah is severe in retributing (evil):

(55) They will not fight against you in a body save in fortified towns or from behind walls; their fighting between them is severe, you may think them as one body, and their hearts are disunited; that is because they are a people who have no sense.

(56) And how many a town which rebelled against the commandment of its Lord and His apostles, so We called it to account severely and We chastised it (with) a stern chastisement.

(57) Allah has prepared for them severe chastisement, therefore be careful of (your duty to) Allah, O men of understanding who believe! Allah has indeed revealed to you a reminder,

(58) On the day when there shall be a severe affliction, and they shall be called upon to make obeisance, but they shall not be able,

(59) Then as to Samood, they were destroyed by an excessively severe punishment.

(60) Reclining therein on raised couches, they shall find therein neither (the severe heat of) the sun nor intense cold.