vaporware：雾件（已做广告但上未上市的计算机程序或产品）

比喻用法，计算机术语。比较wetware.

• forehead
• foreign
• foreign-returned
• forelock
• foreman
• foremost
• forensic
• foreplay
• forerunner
• foresight
• foreskin
• forest
• forestall
• foretell
• forever
• forfeit
• forfeiture
• forfend
• forge
• forgery
• forget
• forget-me-not
• forgive
• forgiving
• forgo