The word(s) "till" appears 38 time(s) in 38 verse(s) in Quran in Abdullah Yusuf Ali translation.

(31) (Iblis) said: "O my Lord! Give me then respite till the Day the (dead) are raised."

(32) "till the Day of the Time Appointed."

(33) So We sent against them a furious Wind through days of disaster, that We might give them a taste of a Penalty of humiliation in this life; but the Penalty of a Hereafter will be more humiliating still: and they will find no help.

(34) If it be His Will He can still the Wind: then would they become motionless on the back of the (ocean). Verily in this are Signs for everyone who patiently perseveres and is grateful.

(35) Know ye (all), that the life of this world is but play and amusement, pomp and mutual boasting and multiplying, (in rivalry) among yourselves, riches and children. Here is a similitude: How rain and the growth which it brings forth, delight (the hearts of) the tillers; soon it withers; thou wilt see it grow yellow; then it becomes dry and crumbles away. But in the Hereafter is a Penalty severe (for the devotees of wrong). And Forgiveness from Allah and (His) Good Pleasure (for the devotees of Allah). And what is the life of this world, but goods and chattels of deception?

(36) The Day they see it, (It will be) as if they had tarried but a single evening, or (at most till) the following morn!

(37) And by the Night when it is still,-

(38) Therefore, when thou art free (from thine immediate task), still labour hard,