This is the 11743rd most frequent French word.
sitôt
"Sitôt" means "as soon as" in English.
Here, "sitôt que" is used to indicate immediacy or prompt action following an event concluding.
Ils partiront sitôt que la réunion sera terminée.
They will leave as soon as the meeting is over.
In this sentence, "sitôt reçu" signifies an action occurring immediately upon receipt of something.
Sitôt reçu, il a répondu à l'invitation.
As soon as he received it, he responded to the invitation.
This usage of "sitôt" demonstrates immediacy, showing something happening right after another event.