Was heißt »Begründung« auf Englisch?

Das Substantiv »Begründung« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Es ist schwierig, die Begründung zu verstehen, die er angab.: It's difficult to understand the reason he gave.
Hat er eine Begründung angegeben?: Has he given a reason?; Did he give a reason?
Er wurde entlassen mit der Begründung, dass er faul sei.: He was dismissed on the grounds that he was lazy.
Ich war schockiert, als ich Toms Begründung für seine Tat hörte.: I was shocked when I heard the reason Tom gave for his action.; I was shocked when I heard Tom's explanation for his action.
Er hatte für seinen Vorschlag eine gute Begründung.: He had a sound rationale for his suggestion.
Sokrates wurde mit der Begründung angeklagt, er würde die Jugend verderben.: Socrates was arraigned on the ground that he was corrupting the young.

I like and at least partially agree with this explanation by Tom.
Was there a reason you set your alarm so early?
His explanation is not very convincing.
His explanation was unconvincing.
Her explanation didn't sound convincing.
His explanation didn't sound convincing.
His explanation was not convincing.
Why won't you listen to the voice of reason?
No matter what grand and lofty reason you have, it's not right to do this.
Does anyone know what the reason is?
There's no reason why I should go there.
What's the reason for his trip?
Our forefathers would not have given the name of Senate to our supreme council if they did not see in the elders the virtues of prudence, common sense and reason.
There's absolutely no reason to be alarmed.
There's no reason for me to go there.
I know the reason why Tom was cross with them.
I know the reason why Tom was cross with her.
Her explanation was unconvincing.
Do I have to give him a reason?
Must I give him a reason?