6 letter words:
prefab13,
upbear10,
burrer8,
parure8,
uprear8,
5 letter words:
fubar10,
farer8,
feuar8,
barer7,
barre7,
parer7,
pareu7,
purer7,
raper7,
rebar7,
rarer5,
urare5,
4 letter words:
barf9,
frap9,
burp8,
fare7,
fear7,
frae7,
aper6,
bare6,
bear6,
beau6,
brae6,
brrr6,
bura6,
burr6,
pare6,
parr6,
pear6,
prau6,
pure6,
purr6,
rape6,
reap6,
rube6,
rare4,
rear4,
ruer4,
urea4,
3 letter words:
fab8,
fub8,
bap7,
pub7,
arf6,
far6,
fer6,
feu6,
fur6,
ref6,
ape5,
arb5,
bar5,
bra5,
brr5,
bur5,
par5,
pea5,
per5,
pur5,
rap5,
reb5,
rep5,
rub5,
urb5,
urp5,
are3,
ear3,
eau3,
era3,
err3,
rue3,
2 letter words:
ef5,
fa5,
fe5,
ab4,
ba4,
be4,
pa4,
pe4,
up4,
ae2,
ar2,
er2,
re2,