fearful
none
Some words that start and end with letter F are:fallofffireproofflagstafffluffflyleaffoodstufffoolproof
febrero
filibuster
Some words that start with U and end with F: unbelief. uncuff. underproof. undersheriff. unroof.
Function
Ferrous.
Few, ...........?
FAT
jiff
wolf
FUN lol