11 letter words:
coefficient21,
9 letter words:
efficient17,
8 letter words:
coeffect18,
coinfect15,
7 letter words:
offence15,
confect14,
fifteen13,
fiction12,
conceit11,
6 letter words:
coffee14,
coffin14,
coiffe14,
effect14,
office14,
tiffin12,
toffee12,
confit11,
infect11,
iconic10,
finite9,
finito9,
cenote8,
entice8,
incite8,
noetic8,
notice8,
5 letter words:
fence10,
ficin10,
conic9,
ictic9,
feint8,
often8,
cento7,
conte7,
ionic7,
niece7,
oncet7,
ontic7,
tonic7,
4 letter words:
coff12,
fief10,
fife10,
teff10,
tiff10,
toff10,
coft9,
coif9,
fice9,
fico9,
foci9,
feet7,
fete7,
fine7,
fino7,
foin7,
font7,
info7,
neif7,
cent6,
cete6,
cine6,
cion6,
cite6,
coin6,
cone6,
coni6,
cote6,
etic6,
icon6,
nice6,
once6,
otic6,
inti4,
into4,
nite4,
note4,
teen4,
tine4,
tone4,
3 letter words:
eff9,
iff9,
off9,
eft6,
fee6,
fen6,
fet6,
fie6,
fin6,
fit6,
foe6,
fon6,
oft6,
cee5,
con5,
cot5,
ice5,
tic5,
eon3,
ion3,
nee3,
net3,
nit3,
not3,
one3,
tee3,
ten3,
tie3,
tin3,
toe3,
ton3,
2 letter words:
ef5,
fe5,
if5,
of5,
en2,
et2,
in2,
it2,
ne2,
no2,
oe2,
oi2,
on2,
ti2,
to2,