9 letter words:
rubrician13,
6 letter words:
brucin10,
incubi10,
rubric10,
anuric8,
curari8,
curran8,
rurban8,
uranic8,
5 letter words:
baric9,
cabin9,
rabic9,
abrin7,
acini7,
auric7,
bairn7,
brain7,
briar7,
bruin7,
bunia7,
buran7,
burin7,
cairn7,
cirri7,
crura7,
curia7,
incur7,
naric7,
nubia7,
ricin7,
rubai7,
rubin7,
runic7,
unbar7,
uncia7,
urban7,
urbia7,
nairu5,
urari5,
4 letter words:
banc8,
carb8,
crab8,
crib8,
curb8,
abri6,
bani6,
barn6,
baur6,
birr6,
bran6,
brin6,
buna6,
bura6,
burn6,
burr6,
cain6,
carn6,
carr6,
cran6,
curn6,
curr6,
narc6,
rabi6,
riba6,
unci6,
uric6,
airn4,
inia4,
nurr4,
rain4,
rani4,
raun4,
ruin4,
unai4,
3 letter words:
bac7,
cab7,
cub7,
arb5,
arc5,
ban5,
bar5,
bin5,
bra5,
brr5,
bru5,
bun5,
bur5,
can5,
car5,
cru5,
cur5,
nab5,
nib5,
nub5,
rib5,
rub5,
ruc5,
urb5,
ain3,
air3,
ani3,
nur3,
rai3,
ran3,
ria3,
rin3,
run3,
uni3,
urn3,
2 letter words:
ab4,
ba4,
bi4,
ai2,
an2,
ar2,
in2,
na2,
nu2,
un2,
ur2,