Industry (noun)

1. A particular form of economic or commercial activity that involves the production of goods or services.
2. The people or companies engaged in a particular form of industrial activity.
3. The production of goods or the provision of services on a large scale.

Origin:

Middle english industrie, from old french, from latin industria 'diligence', from industrius 'diligent'.

Examples:

1. The automobile industry is one of the largest in the world.
2. The computer industry is constantly changing.
3. The film industry was a major source of employment in the city.
4. The agricultural industry is essential for feeding the world.
5. The tourism industry is a major source of income for the country.