13 letter words:
inefficacious23,
11 letter words:
efficacious21,
9 letter words:
caffeinic19,
fancifies17,
8 letter words:
caffeins16,
affusion14,
effusion14,
unifaces13,
cocaines12,
7 letter words:
caffein15,
coffins15,
coiffes15,
fanfics15,
offices15,
suffice15,
affines13,
confuse12,
fancies12,
fascine12,
fiances12,
uniface12,
cocaine11,
cocains11,
concise11,
oceanic11,
unifies10,
acinose9,
acinous9,
cuisine9,
eosinic9,
nicoise9,
6 letter words:
coffin14,
coiffe14,
fanfic14,
office14,
affine12,
facies11,
fauces11,
fiance11,
fiasco11,
ficins11,
ficoes11,
fincas11,
fucose11,
unific11,
accuse10,
acinic10,
caseic10,
cocain10,
conics10,
iconic10,
scenic10,
sconce10,
siccan10,
fusain9,
fusion9,
infuse9,
unsafe9,
acinus8,
aeonic8,
anisic8,
canoes8,
casein8,
casini8,
casino8,
conies8,
cosine8,
cousin8,
icones8,
incase8,
incise8,
incuse8,
ionics8,
oceans8,
oscine8,
ounces8,
uncase8,
unciae8,
usance8,
ionise6,
5 letter words:
caffs13,
coffs13,
cuffs13,
scoff13,
scuff13,
fiefs11,
fifes11,
naffs11,
sniff11,
snuff11,
cafes10,
coifs10,
cuifs10,
faces10,
fices10,
ficin10,
ficus10,
finca10,
focus10,
cisco9,
cocas9,
conic9,
cosec9,
cusec9,
secco9,
fanes8,
fanos8,
fauns8,
fines8,
finis8,
finos8,
foins8,
infos8,
naifs8,
neifs8,
snafu8,
acini7,
acnes7,
cains7,
canes7,
canoe7,
canso7,
cause7,
cines7,
cions7,
coins7,
cones7,
conus7,
cosie7,
icons7,
incus7,
ionic7,
ocean7,
ounce7,
saice7,
sauce7,
scena7,
scion7,
scone7,
since7,
sonic7,
uncia7,
uncos7,
aeons5,
anise5,
eosin5,
nisei5,
noise5,
unais5,
usnea5,
4 letter words:
caff12,
coff12,
cuff12,
effs10,
fief10,
fife10,
naff10,
offs10,
cafe9,
coif9,
cuif9,
face9,
fice9,
fico9,
fisc9,
foci9,
fuci9,
ceca8,
coca8,
enuf7,
fain7,
fane7,
fano7,
fans7,
faun7,
fens7,
feus7,
fine7,
fino7,
fins7,
foes7,
foin7,
fons7,
funs7,
fuse7,
info7,
naif7,
neif7,
oafs7,
safe7,
seif7,
sofa7,
aces6,
acne6,
asci6,
cain6,
cane6,
cans6,
case6,
ciao6,
cine6,
cion6,
coin6,
cone6,
coni6,
cons6,
cues6,
ecus6,
ices6,
icon6,
nice6,
ocas6,
once6,
scan6,
sice6,
soca6,
unci6,
unco6,
aeon4,
ains4,
anes4,
anis4,
anus4,
eons4,
inia4,
ions4,
naoi4,
naos4,
nisi4,
noes4,
nose4,
nous4,
ones4,
onus4,
sain4,
sane4,
sine4,
sone4,
unai4,
3 letter words:
aff9,
eff9,
iff9,
off9,
efs6,
fan6,
fas6,
fen6,
fes6,
feu6,
fie6,
fin6,
foe6,
fon6,
fou6,
fun6,
ifs6,
oaf6,
ace5,
can5,
cis5,
con5,
cos5,
cue5,
ecu5,
ice5,
oca5,
sac5,
sec5,
sic5,
ain3,
ais3,
ane3,
ani3,
eau3,
ens3,
eon3,
ins3,
ion3,
nae3,
nos3,
nus3,
oes3,
one3,
ons3,
ose3,
sae3,
sau3,
sea3,
sei3,
sen3,
sin3,
son3,
sou3,
sue3,
sun3,
uns3,
use3,
2 letter words:
ef5,
fa5,
fe5,
if5,
of5,
ae2,
ai2,
an2,
as2,
en2,
es2,
in2,
is2,
na2,
ne2,
no2,
nu2,
oe2,
oi2,
on2,
os2,
si2,
so2,
un2,
us2,