This is the 1611th most frequent German word.
sparen
"Spare" means "to save" or "to economize" in English.
In this sentence, 'sparen' is used to mean 'to save money specifically for a later purpose', often in the context of financial planning.
Ich spare jeden Monat Geld, um einen Urlaub zu finanzieren.
I save money every month to finance a vacation.
Here, 'sparen' refers to 'saving resources' and is extended to the context of energy conservation.
Durch energiesparende Geräte können wir Strom sparen.
By using energy-efficient devices, we can save electricity.
In this case, 'sparen' refers to 'saving time', indicating a reduction in the expenditure of time through efficient organization.