The word(s) "once" appears 177 time(s) in 167 verse(s) in Quran in Muhammad Pickthal translation.

(111) Those concerning whom the Word will have come true will say: Our Lord! These are they whom we led astray. We led them astray even as we ourselves were astray. We declare our innocence before Thee: us they never worshipped.

(112) And thy Lord knoweth what their breasts conceal, and what they publish.

(113) But they verily will bear their own loads and other loads beside their own, and they verily will be questioned on the Day of Resurrection concerning that which they invented.

(114) Who doeth greater wrong than he who inventeth a lie concerning Allah, or denieth the truth when it cometh unto him? Is not there a home in hell for disbelievers?

(115) And We have enjoined upon man concerning his partners - His mother beareth him in weakness upon weakness, and his weaning is in two years - Give thanks unto Me and unto thy parents. Unto Me is the journeying.

(116) See ye not how Allah hath made serviceable unto you whatsoever is in the skies and whatsoever is in the earth and hath loaded you with His favours both without and within? Yet of mankind is he who disputeth concerning Allah, without knowledge or guidance or a scripture giving light.

(117) Say: The angel of death, who hath charge concerning you, will gather you, and afterward unto your Lord ye will be returned.

(118) And if We had so willed, We could have given every soul its guidance, but the word from Me concerning evildoers took effect: that I will fill hell with the jinn and mankind together.

(119) Lo! thy Lord will judge between them on the Day of Resurrection concerning that wherein they used to differ.

(120) When they came upon you from above you and from below you, and when eyes grew wild and hearts reached to the throats, and ye were imagining vain thoughts concerning Allah.