9 letter words:
subgroups14,
8 letter words:
subgroup13,
6 letter words:
bourgs9,
groups9,
sprugs9,
usurps8,
rugous7,
5 letter words:
burps9,
bogus8,
bourg8,
burgs8,
gorps8,
group8,
grubs8,
progs8,
sprug8,
pours7,
pross7,
roups7,
rubus7,
sorbs7,
soups7,
spurs7,
usurp7,
gross6,
gurus6,
sorus5,
sours5,
4 letter words:
bops8,
burp8,
pubs8,
bogs7,
bugs7,
burg7,
gobs7,
gorp7,
grub7,
prog7,
pugs7,
boss6,
bros6,
burs6,
buss6,
opus6,
orbs6,
pour6,
pros6,
purs6,
puss6,
robs6,
roup6,
rubs6,
sobs6,
sops6,
sorb6,
soup6,
spur6,
subs6,
sups6,
urbs6,
urps6,
guru5,
rugs5,
ours4,
sour4,
sous4,
urus4,
3 letter words:
bop7,
pub7,
bog6,
bug6,
gob6,
pug6,
bos5,
bro5,
bur5,
bus5,
ops5,
orb5,
pro5,
pur5,
pus5,
rob5,
rub5,
sob5,
sop5,
sub5,
sup5,
upo5,
ups5,
urb5,
urp5,
gor4,
gos4,
rug4,
ors3,
our3,
sos3,
sou3,
2 letter words:
bo4,
op4,
up4,
go3,
or2,
os2,
so2,
us2,