12 letter words:
frontrunning16,
9 letter words:
fortuning13,
8 letter words:
foutring12,
fronting12,
trunnion8,
7 letter words:
fonning11,
forting11,
funning11,
furring11,
turfing11,
grunion8,
outgrin8,
outring8,
ronning8,
rorting8,
routing8,
running8,
touring8,
tunning8,
turning8,
runnion7,
6 letter words:
frigot10,
froing10,
forint9,
forrit9,
noting7,
onning7,
outing7,
outrig7,
rigour7,
rigout7,
roting7,
runrig7,
toning7,
trigon7,
truing7,
tuning7,
turgor7,
ungirt7,
urning7,
intron6,
inturn6,
turion6,
turnon6,
untorn6,
5 letter words:
fugio9,
fungi9,
fungo9,
gonif9,
grift9,
grouf9,
fount8,
front8,
frorn8,
fruit8,
furor8,
futon8,
unfit8,
giron6,
griot6,
groin6,
grout6,
grunt6,
guiro6,
ingot6,
rigor6,
ruing6,
tigon6,
toing6,
trigo6,
trugo6,
ungot6,
unrig6,
inrun5,
intro5,
inurn5,
ninon5,
niton5,
nitro5,
noint5,
ronin5,
rutin5,
trior5,
union5,
untin5,
4 letter words:
figo8,
frig8,
frog8,
frug8,
fung8,
gift8,
fino7,
firn7,
foin7,
font7,
fort7,
four7,
frit7,
furr7,
info7,
rift7,
tofu7,
turf7,
ginn5,
girn5,
giro5,
girr5,
girt5,
gori5,
gout5,
grin5,
grit5,
grot5,
gurn5,
ingo5,
nong5,
ring5,
rong5,
rung5,
ting5,
tong5,
trig5,
trog5,
trug5,
tung5,
inro4,
into4,
iron4,
noir4,
noni4,
nori4,
noun4,
nout4,
nurr4,
oint4,
ourn4,
riot4,
roin4,
ront4,
rort4,
roti4,
rout4,
ruin4,
runt4,
tiro4,
tirr4,
tori4,
torn4,
torr4,
toun4,
tour4,
trin4,
trio4,
tron4,
turn4,
unit4,
unto4,
3 letter words:
fig7,
fog7,
fug7,
gif7,
fin6,
fir6,
fit6,
fon6,
for6,
fou6,
fro6,
fun6,
fur6,
oft6,
orf6,
rif6,
ufo6,
gin4,
gio4,
git4,
gnu4,
gon4,
gor4,
got4,
gun4,
gur4,
gut4,
nog4,
rig4,
rug4,
tig4,
tog4,
tug4,
inn3,
ion3,
nit3,
non3,
nor3,
not3,
nun3,
nur3,
nut3,
ort3,
our3,
out3,
rin3,
rit3,
rot3,
run3,
rut3,
tin3,
ton3,
tor3,
tui3,
tun3,
uni3,
urn3,
2 letter words:
if5,
of5,
gi3,
go3,
gu3,
ug3,
in2,
io2,
it2,
no2,
nu2,
oi2,
on2,
or2,
ou2,
ti2,
to2,
un2,
ur2,
ut2,
