8 letter words:
superbug13,
7 letter words:
upsurge10,
6 letter words:
superb10,
geburs9,
purges9,
spurge9,
pursue8,
5 letter words:
burps9,
pubes9,
bergs8,
burgs8,
gebur8,
grubs8,
purge8,
speug8,
sprug8,
burse7,
puers7,
pures7,
purse7,
rebus7,
rubes7,
rubus7,
sprue7,
spuer7,
suber7,
super7,
usurp7,
grues6,
gurus6,
surge6,
urges6,
usure5,
4 letter words:
burp8,
pube8,
pubs8,
begs7,
berg7,
bugs7,
burg7,
grub7,
gubs7,
gups7,
pegs7,
pugs7,
spug7,
brus6,
burs6,
puer6,
pure6,
purs6,
rebs6,
reps6,
rube6,
rubs6,
spue6,
spur6,
supe6,
urbs6,
urps6,
ergs5,
grue5,
gues5,
gurs5,
guru5,
regs5,
rugs5,
urge5,
rues4,
ruse4,
suer4,
sure4,
ures4,
urus4,
user4,
3 letter words:
pub7,
beg6,
bug6,
gub6,
gup6,
peg6,
pug6,
bes5,
bru5,
bur5,
bus5,
per5,
pes5,
pre5,
pur5,
pus5,
reb5,
rep5,
rub5,
sub5,
sup5,
ups5,
urb5,
urp5,
erg4,
gue4,
gur4,
gus4,
reg4,
rug4,
seg4,
ugs4,
ers3,
res3,
rue3,
ser3,
sue3,
sur3,
ure3,
use3,
2 letter words:
be4,
pe4,
up4,
gu3,
ug3,
er2,
es2,
re2,
ur2,
us2,