1. Inability to see the colour red or to distinguish red and bluish-green
   - red-blind

See also: blind, protanopia, unsighted

• pin clover
• pin curl
• pin down
• pin grass
• pin money
• PIN number
• pin oak
• pin table
• pin tumbler
• pin wrench
• pin-tailed duck
• pin-tailed grouse
• pin-tailed sandgrouse
• pin-up
• pina cloth
• pina colada
• Pinaceae
• pinafore
• pinata
• Pinatubo
• pinball
• pinball game
• pinball machine
• pince-nez
• pincer