5 letter words:
fubar10,
4 letter words:
hauf10,
barf9,
buhr9,
frab9,
habu9,
faur7,
frau7,
baur6,
bura6,
3 letter words:
fah9,
bah8,
fab8,
fub8,
hub8,
arf6,
auf6,
far6,
fra6,
fur6,
rah6,
arb5,
bar5,
bra5,
bru5,
bur5,
rub5,
urb5,
2 letter words:
ah5,
fa5,
ha5,
uh5,
ab4,
ba4,
ar2,
ur2,