monolingual/monohʹling·gwəl/ adj

• flight lieutenant
• flightline
• flight of fancy/the imagination
• flight path
• flight plan
• flight recorder
• flight sergeant
• flight simulator
• flighty
• flimflam
• flimsy
• flinch
• flinders
• fling
• flint
• flint corn
• flint glass
• flintlock
• flinty
• flip
• flip chart
• flip-flop
• flip one's lid
• flippant
• flipper