1. Something desirable but not likely to happen

Encyclopedia: Pie in the sky

• driving force
• driving iron
• driving licence
• driving license
• driving range
• driving school
• driving wheel
• Drixoral
• pick-me-up
• pick-off
• pickaback
• pickaback plant
• pickaninny
• pickax
• pickaxe
• pickelhaube
• picker
• pickerel
• pickerel frog
• pickerelweed
• pickerelweed family
• Pickeringia
• Pickeringia montana
• picket
• picket boat