7 letter words:
rubrics11,
6 letter words:
rubric10,
cirrus8,
5 letter words:
cribs9,
curbs9,
scrub9,
birrs7,
burrs7,
currs7,
cursi7,
4 letter words:
crib8,
cubs8,
curb8,
birr6,
bris6,
brus6,
burr6,
burs6,
cris6,
crus6,
curr6,
curs6,
ribs6,
rubs6,
rucs6,
scur6,
urbs6,
uric6,
3 letter words:
cub7,
bis5,
brr5,
bru5,
bur5,
bus5,
cis5,
cru5,
cur5,
rib5,
rub5,
ruc5,
sib5,
sic5,
sub5,
urb5,
sir3,
sri3,
sui3,
sur3,
2 letter words:
bi4,
is2,
si2,
ur2,
us2,
