6 letter words:
fabber13,
baubee10,
nabber10,
furane9,
unfree9,
unbear8,
urbane8,
5 letter words:
fubar10,
barbe9,
rebbe9,
feuar8,
frena8,
furan8,
buran7,
unbar7,
urban7,
arene5,
enure5,
ranee5,
4 letter words:
barf9,
beef9,
feeb9,
abbe8,
babe8,
babu8,
barb8,
burb8,
enuf7,
fane7,
fare7,
faun7,
fear7,
fere7,
fern7,
frae7,
free7,
reef7,
bane6,
bare6,
barn6,
bean6,
bear6,
beau6,
been6,
beer6,
bene6,
brae6,
bran6,
bree6,
bren6,
buna6,
bura6,
burn6,
nabe6,
rube6,
unbe6,
earn4,
erne4,
near4,
rune4,
urea4,
3 letter words:
fab8,
fub8,
bub7,
ebb7,
arf6,
fan6,
far6,
fee6,
fen6,
fer6,
feu6,
fun6,
fur6,
ref6,
arb5,
ban5,
bar5,
bee5,
ben5,
bra5,
bun5,
bur5,
nab5,
neb5,
nub5,
reb5,
rub5,
urb5,
ane3,
are3,
ear3,
eau3,
era3,
ere3,
ern3,
nae3,
nee3,
ran3,
ree3,
rue3,
run3,
urn3,
2 letter words:
ef5,
fa5,
fe5,
ab4,
ba4,
be4,
ae2,
an2,
ar2,
en2,
er2,
na2,
ne2,
nu2,
re2,
un2,