7 letter words:
fucking17,
cuffing16,
6 letter words:
fungic12,
feuing10,
cueing9,
5 letter words:
knife12,
eking10,
feign9,
fungi9,
cuing8,
genic8,
4 letter words:
feck13,
fuck13,
cuff12,
fink11,
funk11,
geck11,
guck11,
guff11,
kief11,
kufi11,
cuke10,
fief10,
fife10,
neck10,
nick10,
cuif9,
fice9,
fuci9,
gink9,
gunk9,
king9,
kine8,
kune8,
neuk8,
nuke8,
enuf7,
fine7,
neif7,
cine6,
nice6,
unci6,
genu5,
gien5,
3 letter words:
kef10,
kif10,
eff9,
ick9,
iff9,
keg8,
fig7,
fug7,
ink7,
ken7,
kin7,
kue7,
uke7,
cig6,
fen6,
feu6,
fie6,
fin6,
fun6,
cue5,
ecu5,
ice5,
eng4,
gen4,
gie4,
gin4,
gnu4,
gun4,
neg4,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
in2,
ne2,
nu2,
un2,