This is the 1301st most frequent Russian word.
света
"Света" is the genitive or accusative singular form of "свет," meaning "light," or it can be a diminutive form of the name "Светлана," meaning "Sveta" (a person's name).
Here, 'света' is used to indicate 'light,' which is a physical concept necessary to brighten a space.
Нам нужен источник света для освещения комнаты.
We need a source of light to illuminate the room.
In this context, 'света' again refers to 'light,' emphasizing its visibility as a natural phenomenon.
В конце туннеля виднелась полоска света.
At the end of the tunnel, a streak of light was visible.
Here, 'света' is literary or abstract, symbolizing illumination or positivity in a metaphysical sense.