fossa/ʹfosə/ noun (pl fossae /ʹfosee, ʹfosie/)

• flasher
• flash flood
• flash-freeze
• flash-fry
• flashgun
• flashing
• flash in the pan
• flash lamp
• flashlight
• flash memory
• flash mob
• flashover
• flash point
• flash suit
• flashtube
• flashy
• flask
• flat
• flatbed
• flatboat
• flatbread
• flatcar
• flatette
• flat feet
• flatfeet