6 letter f words ending with e:fiddlefacadefaminefeeblefoiblefelineficklefigurefinalefizzlefleecefondleforageforseefutilefreezefringefumble
Some eight letter words starting with F and ending in E are:favoritefeminineflatlineflexibleforciblefracturefugitive
Some four letter words starting with S and ending with F are:selfserfsurf
Of and If
Some words that start and end with letter F are:fallofffireproofflagstafffluffflyleaffoodstufffoolproof
The usual plural form for words ending in -f or -ef is to drop the f and add ves. There are exceptions to this rule where only an s is added to the end of the words.
elf
Finger
barfbeefbiffbuffbumfchefcoifcuffdeafdoffduffgaffgoofguffgulfhalfhuffjiffleafloafmiff
elf oaf ref
facetfaintfaultfightfirstflintflirtfloatfleetfrontfrostfruit
fission - a nuclear reaction