5 letter words:
rabbi9,
briar7,
rubai7,
urbia7,
urari5,
4 letter words:
babu8,
barb8,
buba8,
burb8,
biga7,
brag7,
brig7,
burg7,
garb7,
grab7,
grub7,
abri6,
baur6,
birr6,
bura6,
burr6,
rabi6,
riba6,
gair5,
gari5,
gaur5,
girr5,
guar5,
ragi5,
ruga5,
3 letter words:
abb7,
bib7,
bub7,
bag6,
big6,
bug6,
gab6,
gib6,
gub6,
arb5,
bar5,
bra5,
brr5,
bru5,
bur5,
rib5,
rub5,
urb5,
gar4,
gau4,
gur4,
rag4,
rig4,
rug4,
air3,
rai3,
ria3,
2 letter words:
ab4,
ba4,
bi4,
ag3,
gi3,
gu3,
ug3,
ai2,
ar2,
ur2,