The word(s) "generation" appears 25 time(s) in 24 verse(s) in Quran in Muhammad Pickthal translation.

(21) Have they not seen how many generations We destroyed before them, which indeed returned not unto them;

(22) How many a generation We destroyed before them, and they cried out when it was no longer the time for escape!

(23) And whoso saith unto his parents: Fie upon you both! Do ye threaten me that I shall be brought forth (again) when generations before me have passed away? And they twain cry unto Allah for help (and say): Woe unto thee! Believe! Lo! the promise of Allah is true. But he saith: This is naught save fables of the men of old:

(24) And how many a generation We destroyed before them, who were mightier than these in prowess so that they overran the lands! Had they any place of refuge (when the judgment came)?