7 letter words:
firebug13,
gulfier11,
bulgier10,
6 letter words:
begulf12,
figure10,
bugler9,
bulger9,
burgle9,
gerbil9,
ireful9,
gluier7,
ligure7,
reguli7,
uglier7,
5 letter words:
brugh11,
burgh11,
brief10,
fiber10,
fibre10,
fugle9,
grief9,
huger9,
bilge8,
bugle8,
bulge8,
filer8,
flier8,
giber8,
lifer8,
rifle8,
birle7,
bluer7,
liber7,
rubel7,
ruble7,
gluer6,
gruel6,
guile6,
liger6,
luger6,
4 letter words:
buhl9,
buhr9,
flub9,
herb9,
frig8,
frug8,
gulf8,
huge8,
berg7,
brig7,
burg7,
elhi7,
file7,
fire7,
flir7,
flue7,
fuel7,
furl7,
gibe7,
glib7,
grub7,
heil7,
heir7,
herl7,
hire7,
hurl7,
lehr7,
lief7,
life7,
reif7,
rife7,
bier6,
bile6,
birl6,
blue6,
blur6,
brie6,
burl6,
lube6,
rube6,
girl5,
glue5,
grue5,
iglu5,
luge5,
urge5,
lier4,
lieu4,
lire4,
lure4,
riel4,
rile4,
rule4,
3 letter words:
feh9,
fib8,
fub8,
hub8,
fig7,
fug7,
ghi7,
hug7,
ugh7,
beg6,
big6,
bug6,
elf6,
fer6,
feu6,
fie6,
fil6,
fir6,
flu6,
fur6,
gib6,
her6,
hie6,
hue6,
ref6,
rif6,
bel5,
bur5,
lib5,
reb5,
rib5,
rub5,
urb5,
erg4,
gel4,
gie4,
gul4,
leg4,
lug4,
reg4,
rig4,
rug4,
ire3,
lei3,
leu3,
lie3,
rei3,
rue3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
if5,
uh5,
be4,
bi4,
el2,
er2,
li2,
re2,