9 letter words:
rubbering14,
8 letter words:
grubbier13,
7 letter words:
grubber12,
rubbing12,
nubbier11,
bringer10,
burring10,
6 letter words:
bebung11,
ebbing11,
gibber11,
briber10,
ribber10,
rubber10,
beguin9,
binger9,
brigue9,
bunger9,
bungie9,
burger9,
briner8,
burier8,
burner8,
burnie8,
rubier8,
rubine8,
erring7,
girner7,
ringer7,
rueing7,
runrig7,
ruiner6,
5 letter words:
bribe9,
begin8,
begun8,
being8,
binge8,
bring8,
brung8,
gebur8,
giber8,
biner7,
brier7,
brine7,
bruin7,
burin7,
rubin7,
ering6,
grein6,
niger6,
regur6,
reign6,
renig6,
rerig6,
ruing6,
unrig6,
urger6,
inure5,
rerun5,
urine5,
4 letter words:
burb8,
berg7,
bing7,
brig7,
bung7,
burg7,
gibe7,
grub7,
bein6,
beni6,
bien6,
bier6,
bine6,
birr6,
brei6,
bren6,
brer6,
brie6,
brin6,
burn6,
burr6,
rube6,
unbe6,
genu5,
gien5,
girn5,
girr5,
gren5,
grin5,
grue5,
gurn5,
ring5,
rung5,
urge5,
iure4,
nurr4,
rein4,
rine4,
ruer4,
ruin4,
rune4,
3 letter words:
bib7,
bub7,
ebb7,
beg6,
big6,
bug6,
gib6,
gub6,
ben5,
bin5,
brr5,
bru5,
bun5,
bur5,
neb5,
nib5,
nub5,
reb5,
rib5,
rub5,
urb5,
eng4,
erg4,
gen4,
gie4,
gin4,
gnu4,
gue4,
gun4,
gur4,
neg4,
reg4,
rig4,
rug4,
ern3,
err3,
ire3,
nie3,
nur3,
rei3,
ren3,
rin3,
rue3,
run3,
uni3,
ure3,
urn3,
2 letter words:
be4,
bi4,
gi3,
gu3,
ug3,
en2,
er2,
in2,
ne2,
nu2,
re2,
un2,
ur2,