The word(s) "sign" appears 461 time(s) in 421 verse(s) in Quran in Abdullah Yusuf Ali translation.

(131) When Our signs are rehearsed to them, they say: "We have heard this (before): if we wished, we could say (words) like these: these are nothing but tales of the ancients."

(132) And know that out of all the booty that ye may acquire (in war), a fifth share is assigned to Allah,- and to the Messenger, and to near relatives, orphans, the needy, and the wayfarer,- if ye do believe in Allah and in the revelation We sent down to Our servant on the Day of Testing,- the Day of the meeting of the two forces. For Allah hath power over all things.

(133) Remember ye were on the hither side of the valley, and they on the farther side, and the caravan on lower ground than ye. Even if ye had made a mutual appointment to meet, ye would certainly have failed in the appointment: But (thus ye met), that Allah might accomplish a matter already enacted; that those who died might die after a clear sign (had been given), and those who lived might live after a Clear sign (had been given). And verily Allah is He Who heareth and knoweth (all things).

(134) "(Deeds) after the manner of the people of Pharaoh and of those before them: They rejected the signs of Allah, and Allah punished them for their crimes: for Allah is Strong, and Strict in punishment:

(135) (Deeds) after the manner of the people of Pharaoh and those before them": They treated as false the signs of their Lord: so We destroyed them for their crimes, and We drowned the people of Pharaoh: for they were all oppressors and wrong-doers.

(136) But if they have treacherous designs against thee, (O Messenger!), they have already been in treason against Allah, and so hath He given (thee) power over them. And Allah so He Who hath (full) knowledge and wisdom.

(137) The signs of Allah have they sold for a miserable price, and (many) have they hindered from His way: evil indeed are the deeds they have done.

(138) But (even so), if they repent, establish regular prayers, and practise regular charity,- they are your brethren in Faith: (thus) do We explain the signs in detail, for those who understand.

(139) If thou dost question them, they declare (with emphasis): "We were only talking idly and in play." Say: "Was it at Allah, and His signs, and His Messenger, that ye were mocking?"

(140) Hath not the story reached them of those before them?- the People of Noah, and 'Ad, and Thamud; the People of Abraham, the men of Midian, and the cities overthrown. To them came their messengers with clear signs. It is not Allah Who wrongs them, but they wrong their own souls.