This is the 15075th most frequent German word.
sparsam
Economical; frugal; thrifty.
In this sentence, 'sparsam' describes a lifestyle characterized by careful spending or simplicity in order to save resources, particularly money.
Er lebt sehr sparsam, um Geld zu sparen.
He lives very frugally to save money.
Here, 'sparsam' refers to something being efficient in its use of resources, specifically an engine using fuel efficiently.
Der sparsame Motor verbraucht wenig Benzin.
The economical engine consumes little fuel.
In this case, 'sparsam' conveys the idea of using something, such as energy, efficiently and avoiding waste.