This is the 974th most frequent French word.
veille
The French word "veille" means "the eve" or "the day/night before," and can also mean "wakefulness" or "watchfulness."
In this sentence, 'veille' means the day before a specific event.
La veille de son départ, il a vérifié ses bagages.
The day before his departure, he checked his luggage.
Here, 'veille' refers to constant observation or monitoring of technological developments.
Elle est responsable de la veille technologique dans son entreprise.
She is responsible for technology monitoring in her company.
In this case, 'veille' signifies a standby state or low-power mode of a device.