5 letter words:
fubar10,
farer8,
feuar8,
barer7,
barre7,
rebar7,
urare5,
4 letter words:
barf9,
fare7,
fear7,
frae7,
bare6,
bear6,
beau6,
brae6,
bura6,
burr6,
rube6,
rare4,
rear4,
ruer4,
urea4,
3 letter words:
fab8,
fub8,
arf6,
far6,
fer6,
feu6,
fur6,
ref6,
arb5,
bar5,
bra5,
brr5,
bur5,
reb5,
rub5,
urb5,
are3,
ear3,
eau3,
era3,
err3,
rue3,
2 letter words:
ef5,
fa5,
fe5,
ab4,
ba4,
be4,
ae2,
ar2,
er2,
re2,