The word(s) "sign" appears 351 time(s) in 320 verse(s) in Quran in Mohsin Khan translation.

(21) He said: "O my Lord! Make a sign for me." Allah said: "Your sign is that you shall not speak to mankind for three days except with signals. And remember your Lord much (by praising Him again and again), and glorify (Him) in the afternoon and in the morning. "

(22) And will make him [('Îsa (Jesus)] a Messenger to the Children of Israel (saying): "I have come to you with a sign from your Lord, that I design for you out of clay, a figure like that of a bird, and breathe into it, and it becomes a bird by Allah's Leave; and I heal him who was born blind, and the leper, and I bring the dead to life by Allah's Leave. And I inform you of what you eat, and what you store in your houses. Surely, therein is a sign for you, if you believe.

(23) In it are manifest signs (for example), the Maqam (place) of Ibrahim (Abraham); whosoever enters it, he attains security. And Hajj (pilgrimage to Makkah) to the House (Ka'bah ) is a duty that mankind owes to Allah, those who can afford the expenses (for one's conveyance, provision and residence); and whoever disbelieves [i.e. denies Hajj (pilgrimage to Makkah), then he is a disbeliever of Allah], then Allah stands not in need of any of the 'Alamin (mankind, jinn and all that exists) .

(24) Say: "O people of the Scripture (Jews and Christians)! Why do you reject the Ayat of Allah (proofs, evidence, verses, lessons, signs, revelations, etc.) while Allah is Witness to what you do?"

(25) And hold fast, all of you together, to the Rope of Allah (i.e. this Qur'an), and be not divided among yourselves , and remember Allah's Favour on you, for you were enemies one to another but He joined your hearts together, so that, by His Grace, you became brethren (in Islamic Faith), and you were on the brink of a pit of Fire, and He saved you from it. Thus Allah makes His Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.,) clear to you, that you may be guided.

(26) Indignity is put over them wherever they may be, except when under a covenant (of protection) from Allah, and from men; they have drawn on themselves the Wrath of Allah, and destruction is put over them. This is because they disbelieved in the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah and killed the Prophets without right. This is because they disobeyed (Allah) and used to transgress beyond bounds (in Allah's disobedience, crimes and sins).

(27) Those (Jews) who said: "Verily, Allah has taken our promise not to believe in any Messenger unless he brings to us an offering which the fire (from heaven) shall devour." Say: "Verily, there came to you Messengers before me, with clear signs and even with what you speak of; why then did you kill them, if you are truthful?"

(28) Then if they reject you (O Muhammad صلى الله عليه وسلم), so were Messengers rejected before you, who came with Al-Bayyinat (clear signs, proofs, evidence) and the Scripture and the Book of Enlightenment.

(29) Verily! In the creation of the heavens and the earth, and in the alternation of night and day, there are indeed signs for men of understanding.

(30) Surely! Those who disbelieved in Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), We shall burn them in Fire. As often as their skins are roasted through, We shall change them for other skins that they may taste the punishment. Truly, Allah is Ever Most Powerful, All-Wise.