(economics) An industry that provides goods or services to consumers using raw materials from primary industry and goods processed by secondary industry.

plural of primary industry

plural of tertiary industry

(economics) An industry that processes raw materials for conversion by secondary industry into goods or services sold by tertiary industry to provide goods or services to consumers.

plural of captain of industry

plural of service industry

An industry that does not produce any goods, but only provides a service, such as banking or insurance.

(aviation) A discounted air fare for airlines staff.

Domestic manufacturing or commercial activity seen as being a precursor to industrialization; cottage industry.

plural of proto-industry