What does « Speed / Velocity » mean in the Quran?

And indeed, among the People of the Scripture are those who believe in Allah and what was revealed to you and what was revealed to them, [being] humbly submissive to Allah. They do not exchange the verses of Allah for a small price. Those will have their reward with their Lord. Indeed, Allah is swift in account.

They ask you, [O Muhammad], what has been made lawful for them. Say, "Lawful for you are [all] good foods and [game caught by] what you have trained of hunting animals which you train as Allah has taught you. So eat of what they catch for you, and mention the name of Allah upon it, and fear Allah." Indeed, Allah is swift in account.

O Messenger, let them not grieve you who hasten into disbelief of those who say, "We believe" with their mouths, but their hearts believe not, and from among the Jews. [They are] avid listeners to falsehood, listening to another people who have not come to you. They distort words beyond their [proper] usages, saying "If you are given this, take it; but if you are not given it, then beware." But he for whom Allah intends fitnah - never will you possess [power to do] for him a thing against Allah. Those are the ones for whom Allah does not intend to purify their hearts. For them in this world is disgrace, and for them in the Hereafter is a great punishment.

So you see those in whose hearts is disease hastening into [association with] them, saying, "We are afraid a misfortune may strike us." But perhaps Allah will bring conquest or a decision from Him, and they will become, over what they have been concealing within themselves, regretful.

And you see many of them hastening into sin and aggression and the devouring of [what is] unlawful. How wretched is what they have been doing.

Then they His servants are returned to Allah, their true Lord. Unquestionably, His is the judgement, and He is the swiftest of accountants.

And it is He who has made you successors upon the earth and has raised some of you above others in degrees [of rank] that He may try you through what He has given you. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.

And [mention] when your Lord declared that He would surely [continue to] send upon them until the Day of Resurrection those who would afflict them with the worst torment. Indeed, your Lord is swift in penalty; but indeed, He is Forgiving and Merciful.

And when We give the people a taste of mercy after adversity has touched them, at once they conspire against Our verses. Say, "Allah is swifter in strategy." Indeed, Our messengers record that which you conspire

Have they not seen that We set upon the land, reducing it from its borders? And Allah decides; there is no adjuster of His decision. And He is swift in account.

So that Allah will recompense every soul for what it earned. Indeed, Allah is swift in account.

So We responded to him, and We gave to him John, and amended for him his wife. Indeed, they used to hasten to good deeds and supplicate Us in hope and fear, and they were to Us humbly submissive.

Is [because] We hasten for them good things? Rather, they do not perceive.

It is those who hasten to good deeds, and they outstrip [others] therein.

But those who disbelieved - their deeds are like a mirage in a lowland which a thirsty one thinks is water until, when he comes to it, he finds it is nothing but finds Allah before Him, and He will pay him in full his due; and Allah is swift in account.

This Day every soul will be recompensed for what it earned. No injustice today! Indeed, Allah is swift in account.

On the Day the earth breaks away from them [and they emerge] rapidly; that is a gathering easy for Us.

The Day they will emerge from the graves rapidly as if they were, toward an erected idol, hastening.