Also means
electricity
Usage Note
Luz has the irregular plural luces (z → c before -es), as in luces de la ciudad (city lights). In everyday speech, la luz often means electricity or the electric light — pagar la luz means 'to pay the electricity bill'. A la luz de (in light of) is a common formal expression. As a given name, Luz is popular in Spanish-speaking countries.
Examples
"Apaga la luz al salir."
Natural Translation
Turn off the light when you leave.

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