bonanza /bə-nanˈzə or bəʊ- or bo-/

1. A rich mine or vein of precious ore (N American)
2. A large amount of (usu) silver
3. Any source of wealth or stroke of luck

Very prosperous

• colour contrasts
• colour correction
• coloured
• coloured pencil
• coloured pencils
• coloureds
• colourer
• colourers
• colourfast
• colour fastness
• colour film
• colour filter
• colour filters
• colourful
• colourfully
• colourfulness
• colour guard
• colour guards
• colour hearing
• colour in
• colour index
• colour indices
• colouring
• colourings
• commute