9 letter words:
subpriors13,
8 letter words:
subprior12,
6 letter words:
burros8,
priors8,
sbirro8,
sirups8,
sorbus8,
urosis6,
5 letter words:
burps9,
probs9,
pubis9,
biros7,
birrs7,
brios7,
briss7,
burro7,
burrs7,
pious7,
pisos7,
pours7,
prior7,
priss7,
pross7,
puris7,
purrs7,
risps7,
roups7,
rurps7,
sirup7,
sorbs7,
soups7,
spurs7,
orris5,
risus5,
sorus5,
sours5,
4 letter words:
bops8,
burp8,
prob8,
pubs8,
bios6,
biro6,
birr6,
bois6,
bors6,
boss6,
brio6,
bris6,
bros6,
brus6,
burr6,
burs6,
buss6,
obis6,
opus6,
orbs6,
oups6,
pirs6,
piso6,
piss6,
pois6,
poss6,
pour6,
pros6,
psis6,
puir6,
puri6,
purr6,
purs6,
puss6,
ribs6,
rips6,
risp6,
robs6,
roup6,
rubs6,
rurp6,
sibs6,
sips6,
sobs6,
sops6,
sorb6,
soup6,
spur6,
subs6,
sups6,
urbs6,
urps6,
isos4,
ours4,
sirs4,
sori4,
sour4,
sous4,
sris4,
3 letter words:
bop7,
pub7,
bio5,
bis5,
boi5,
bor5,
bos5,
bro5,
brr5,
bru5,
bur5,
bus5,
obi5,
obs5,
ops5,
orb5,
oup5,
pir5,
pis5,
piu5,
poi5,
pos5,
pro5,
psi5,
pur5,
pus5,
rib5,
rip5,
rob5,
rub5,
sib5,
sip5,
sob5,
sop5,
sub5,
sup5,
upo5,
ups5,
urb5,
urp5,
ios3,
iso3,
ors3,
our3,
ous3,
sir3,
sis3,
sos3,
sou3,
sri3,
sui3,
sur3,
sus3,
2 letter words:
bi4,
bo4,
ob4,
op4,
pi4,
po4,
up4,
io2,
is2,
oi2,
or2,
os2,
ou2,
si2,
so2,
ur2,
us2,