8 letter words:
refigure12,
7 letter words:
firebug13,
briefer12,
figurer11,
griefer11,
6 letter words:
figure10,
refuge10,
brigue9,
burgee9,
burger9,
refire9,
beurre8,
burier8,
rubier8,
reurge7,
5 letter words:
brief10,
fiber10,
fibre10,
fugie9,
grief9,
grufe9,
beige8,
ferer8,
fiere8,
firer8,
freer8,
frere8,
frier8,
gebur8,
gerbe8,
giber8,
grebe8,
refer8,
rifer8,
breer7,
brere7,
brier7,
regie6,
regur6,
rerig6,
urger6,
4 letter words:
beef9,
feeb9,
frib9,
frig8,
frug8,
berg7,
brig7,
burg7,
feer7,
fere7,
fier7,
fire7,
free7,
furr7,
gibe7,
grub7,
reef7,
reif7,
rife7,
beer6,
bere6,
bier6,
birr6,
bree6,
brei6,
brer6,
brie6,
burr6,
rube6,
eger5,
euge5,
gere5,
girr5,
gree5,
grue5,
urge5,
iure4,
ruer4,
3 letter words:
fib8,
fub8,
feg7,
fig7,
fug7,
gif7,
beg6,
big6,
bug6,
erf6,
fee6,
fer6,
feu6,
fie6,
fir6,
fur6,
gib6,
gub6,
ref6,
rif6,
bee5,
brr5,
bru5,
bur5,
reb5,
rib5,
rub5,
urb5,
erg4,
gee4,
gie4,
gue4,
gur4,
reg4,
rig4,
rug4,
ere3,
err3,
ire3,
ree3,
rei3,
rue3,
ure3,
2 letter words:
ef5,
fe5,
if5,
be4,
bi4,
gi3,
gu3,
ug3,
ee2,
er2,
re2,
ur2,