economy-n; 2 Senses

Sense Number 1: efficiency, frugality, thriftiness

She julienned carrots and chopped nuts with an amazing economy of effort.
I was impressed by the economy of the highland villagers.
There is economy in buying fruits that are in season.

WordNet 1.7 Sense Numbers: 2, 3, 4

Sense Number 2: a social system of production, distribution and consumption

The global economy is coming out of a recession.
The local economy was hit hard by the factory closing.

WordNet 1.7 Sense Numbers: 1