Economy (noun)

1. The management of resources within an organization or society.
2. The system by which goods and services are produced, sold, and bought within a country or region.
3. The wealth and resources of a country or region, including the production, distribution, and consumption of goods and services.
4. The relationship between production, consumption, and the distribution of wealth in a society.
5. The study of how people use resources to produce goods and services and how those goods and services are distributed and consumed.

Origin:

The word economy comes from the greek word "oikonomia" which means management of a household or administration of resources. this word was used to refer to the management of resources within an organization or society.

Examples:

1. The economy is growing.
2. She studies the economy.
3. He works in the economy.
4. They are affected by the economy.
5. The economy is important for society.