1. (Intrans.) Rester éveillé. Veiller toute la nuit.
2. (ŕ) Prendre soin de. Veiller ŕ quelque chose.
3. Surveiller.
4. Protéger. Veiller un malade.
Stay up late at night without sleeping
Remain awake until late hours of the night
To delay going to bed; stay up
To be cautiously observant of; to inspect, superintend, and guard.