FE: fee
FF: Laffer (as in Laffer curve)
Bluff would have avoided a proper noun.
FG = afghan (the blanket, not the nationality)
[DEL]FG: offgassing[/DEL]
FH: cliffhanger
FI: affiliate
FJ: fjord
FK: elfkin
FL = ROFL
Just kidding. Fluoridation.
FM = halfmast
FN - Deafness
FO - exfoliate
FP - scarfpin
FQ = Elfquest
FR - Africa
FS - scarfs
FT = left
FU - defunct
…
FV - OffVis
(Microsofts Office Visualization Tool, used in combating MS Office software-based system breaches, viruses, etc.)
FW - beefwood