6 letter words:
rabbin10,
anuria6,
urania6,
5 letter words:
rabbi9,
bairn7,
brain7,
bruin7,
buran7,
burin7,
nubia7,
unbar7,
urban7,
urbia7,
naira5,
nairu5,
ruana5,
4 letter words:
abba8,
baba8,
babu8,
barb8,
burb8,
abri6,
bani6,
barn6,
bran6,
brin6,
buna6,
bura6,
burn6,
airn4,
aria4,
aura4,
raia4,
rain4,
rani4,
ruin4,
unai4,
3 letter words:
bib7,
bub7,
aba5,
arb5,
baa5,
ban5,
bar5,
bin5,
bra5,
bun5,
bur5,
nab5,
nib5,
nub5,
rib5,
rub5,
urb5,
ain3,
air3,
ana3,
ani3,
rai3,
ran3,
ria3,
rin3,
run3,
urn3,
2 letter words:
ab4,
ba4,
bi4,
aa2,
ai2,
an2,
ar2,
in2,
na2,
nu2,
un2,