This is the 6429th most frequent Russian word.
экономит
"Saves" or "economizes."
The word 'экономит' here is used in the context of saving or reserving resources, in this case, money for a future purpose.
Она экономит деньги для своей поездки.
She is saving money for her trip.
In this sentence, 'экономит' refers to reducing the expenditure of energy, emphasizing efficiency.
Эта лампа экономит энергию благодаря новым технологиям.
This lamp saves energy thanks to new technologies.
Here, 'экономит' is used to describe the act of reducing the consumption of time through a convenient action.