What is the meaning of industry?

noun

• The people or companies engaged in a particular kind of commercial enterprise.
  • usage: "each industry has its own trade publications"
• The organized action of making of goods and services for sale.
  • usage: "American industry is making increased use of computers to control production"
  • synonyms: manufacture
• Persevering determination to perform a task.
  • usage: "his diligence won him quick promotions"; "frugality and industry are still regarded as virtues"
  • synonyms: diligence, industriousness