6 letter words:
foobar11,
5 letter words:
fibro10,
proof10,
oribi7,
pirai7,
poori7,
4 letter words:
barf9,
forb9,
frab9,
frap9,
frib9,
poof9,
prof9,
barp8,
prob8,
afro7,
fair7,
faro7,
fiar7,
fora7,
roof7,
abri6,
biro6,
boar6,
boor6,
bora6,
brio6,
broo6,
obia6,
pair6,
poor6,
prao6,
proa6,
proo6,
rabi6,
riba6,
roop6,
3 letter words:
fab8,
fap8,
fib8,
fob8,
fop8,
bap7,
bop7,
arf6,
far6,
fir6,
for6,
fra6,
fro6,
oaf6,
oof6,
orf6,
rif6,
abo5,
apo5,
arb5,
bar5,
bio5,
boa5,
boi5,
boo5,
bor5,
bra5,
bro5,
oba5,
obi5,
obo5,
oop5,
orb5,
par5,
pia5,
pir5,
poa5,
poi5,
poo5,
pro5,
rap5,
rib5,
rip5,
rob5,
air3,
oar3,
oor3,
ora3,
rai3,
ria3,
roo3,
2 letter words:
fa5,
if5,
of5,
ab4,
ba4,
bi4,
bo4,
ob4,
op4,
pa4,
pi4,
po4,
ai2,
ar2,
io2,
oi2,
oo2,
or2,