The word(s) "well" appears 261 time(s) in 247 verse(s) in Quran in Abdullah Yusuf Ali translation.

(231) But to no soul will Allah grant respite when the time appointed (for it) has come; and Allah is well acquainted with (all) that ye do.

(232) It is He Who has created you; and of you are some that are Unbelievers, and some that are Believers: and Allah sees well all that ye do.

(233) He knows what is in the heavens and on earth; and He knows what ye conceal and what ye reveal: yea, Allah knows well the (secrets) of (all) hearts.

(234) Believe, therefore, in Allah and His Messenger, and in the Light which we have sent down. And Allah is well acquainted with all that ye do.

(235) The Day that He assembles you (all) for a Day of Assembly,- that will be a Day of mutual loss and gain (among you), and those who believe in Allah and work righteousness,- He will remove from them their ills, and He will admit them to Gardens beneath which Rivers flow, to dwell therein for ever: that will be the Supreme Achievement.

(236) But those who reject Faith and treat Our Signs as falsehoods, they will be Companions of the Fire, to dwell therein for aye: and evil is that Goal.

(237) An Messenger, who rehearses to you the Signs of Allah containing clear explanations, that he may lead forth those who believe and do righteous deeds from the depths of Darkness into Light. And those who believe in Allah and work righteousness, He will admit to Gardens beneath which Rivers flow, to dwell therein for ever: Allah has indeed granted for them a most excellent Provision.

(238) When the Prophet disclosed a matter in confidence to one of his consorts, and she then divulged it (to another), and Allah made it known to him, he confirmed part thereof and repudiated a part. Then when he told her thereof, she said, "Who told thee this? "He said, "He told me Who knows and is well-acquainted (with all things)."

(239) Should He not know,- He that created? and He is the One that understands the finest mysteries (and) is well-acquainted (with them).

(240) "Unless I proclaim what I receive from Allah and His Messages: for any that disobey Allah and His Messenger,- for them is Hell: they shall dwell therein for ever."