dongle /dongˈgl/

1. A device plugged into a computer to allow an authorized application to run (computing)
2. A device used in the illegal cloning of mobile phones

• forewent
• fore-wheel
• fore-wheels
• forewind
• forewinds
• forewing
• forewings
• forewoman
• forewomen
• foreword
• forewords
• forex
• for example
• foreyard
• foreyards
• forfair
• forfaired
• forfairing
• forfairn
• forfairs
• forfaiter
• forfaiters
• forfaiting
• forfaitings
• forfault