Industry is the work that is done to make goods ready for selling or manufacturing and selling of goods. The people or companies engaged in a particular kind of commercial enterprise; "each industry has its own trade publications"

An industry is generally any grouping of businesses that share a common method of generating profits, such as the "music industry", the "automobile industry", or the "cattle industry". Usually an industry is also used specifically to refer to an area of economic production focused on manufacturing which involves large amounts of capital investment before any profit can be realized, also called "heavy industry.". As of 2004, Financial services is the largest industry (or category of industries) in the world in terms of earnings. Industry is a standardized tradition of toolmaking associated with a specified tool or culture: a stone hand-ax industry; the Acheulian industry.