This is the 11778th most frequent French word.
soudainement
Suddenly.
Here, 'soudainement' is an adverb modifying 'décidé,' indicating that the decision to go on vacation was made abruptly.
Il a soudainement décidé de partir en vacances.
He suddenly decided to go on vacation.
In this sentence, 'soudainement' is an adverb modifying 'disparu,' emphasizing the unexpected and rapid nature of the light's disappearance.
La lumière a disparu soudainement, plongeant la pièce dans l'obscurité.
The light suddenly disappeared, plunging the room into darkness.
Here, 'soudainement' is used at the beginning of the sentence to set up the unexpected occurrence of heavy rain.