7 letter words:
rubigos10,
6 letter words:
bourgs9,
rubigo9,
guiros7,
5 letter words:
bigos8,
biogs8,
bogus8,
bourg8,
brigs8,
brogs8,
burgs8,
gibus8,
grubs8,
biros7,
brios7,
giros6,
goris6,
guiro6,
4 letter words:
bigs7,
biog7,
bogs7,
brig7,
brog7,
bugs7,
burg7,
gibs7,
gobs7,
grub7,
gubs7,
bios6,
biro6,
bois6,
bors6,
brio6,
bris6,
bros6,
brus6,
burs6,
obis6,
orbs6,
ribs6,
robs6,
rubs6,
sorb6,
urbs6,
gios5,
giro5,
gori5,
gris5,
gurs5,
rigs5,
rugs5,
ours4,
sori4,
sour4,
3 letter words:
big6,
bog6,
bug6,
gib6,
gob6,
gub6,
bio5,
bis5,
boi5,
bor5,
bos5,
bro5,
bru5,
bur5,
bus5,
obi5,
obs5,
orb5,
rib5,
rob5,
rub5,
sib5,
sob5,
sub5,
urb5,
gio4,
gis4,
gor4,
gos4,
gur4,
gus4,
rig4,
rug4,
sog4,
ugs4,
ios3,
iso3,
ors3,
our3,
ous3,
sir3,
sou3,
sri3,
sui3,
sur3,
2 letter words:
bi4,
bo4,
ob4,
gi3,
go3,
gu3,
ug3,
io2,
is2,
oi2,
or2,
os2,
ou2,
si2,
so2,
ur2,
us2,