1. Ore that yields a substantial profit to the miner 
2. A profitable success
   "the inventor worked for years before hitting pay dirt"

Type of: ore, success

• farkleberry
• Farley maidenhair
• Farley maidenhair fern
• farm
• farm animal
• farm bill
• farm boy
• farm building
• farm cheese
• farm club
• Farm Credit System
• farm girl
• farm horse
• farm machine
• farm out
• farm team
• farm worker
• farmer
• farmer's calendar
• farmer's cheese
• farmer's lung
• farmer's market
• Farmer-Labor Party
• farmerette
• farmhand