The word(s) "warner" appears 41 time(s) in 37 verse(s) in Quran in Abdullah Yusuf Ali translation.

(21) So they wonder that a warner has come to them from among themselves! and the Unbelievers say, "This is a sorcerer telling lies!

(22) Say: "Truly am I a warner: no god is there but the one Allah, Supreme and Irresistible,-

(23) Just in the same way, whenever We sent a warner before thee to any people, the wealthy ones among them said: "We found our fathers following a certain religion, and we will certainly follow in their footsteps."

(24) Say: "I am no bringer of new-fangled doctrine among the messengers, nor do I know what will be done with me or with you. I follow but that which is revealed to me by inspiration; I am but a warner open and clear."

(25) Mention (Hud) one of 'Ad's (own) brethren: Behold, he warned his people about the winding Sand-tracts: but there have been warners before him and after him: "Worship ye none other than Allah: Truly I fear for you the Penalty of a Mighty Day."

(26) We have truly sent thee as a witness, as a bringer of Glad Tidings, and as a warner:

(27) But they wonder that there has come to them a warner from among themselves. So the Unbelievers say: "This is a wonderful thing!

(28) Hasten ye then (at once) to Allah: I am from Him a warner to you, clear and open!

(29) And make not another an object of worship with Allah: I am from Him a warner to you, clear and open!

(30) This is a warner, of the (series of) warners of old!