This is the 284th most frequent Serbian word.
свети
"Свети" in English means "holy" or "saintly."
In this sentence, 'свети' is used as a title indicating a saint, showing a religious and formal use.
Свети Сава је заштитник свих ђака.
Saint Sava is the protector of all students.
Here, the word 'свети' (in the root form of the verb 'светлети') describes something emitting light.
У соби светли лампа.
The lamp is shining in the room.
In this usage, the word 'свети' is part of the verb form indicating a state of sanctity.