9 letter words:
friarbird15,
6 letter words:
briard9,
5 letter words:
bifid11,
braid8,
friar8,
rabid8,
briar7,
radii6,
4 letter words:
barf9,
fard8,
bard7,
bidi7,
bird7,
brad7,
darb7,
drab7,
drib7,
fair7,
fiar7,
abri6,
birr6,
brrr6,
arid5,
irid5,
raid5,
3 letter words:
fab8,
fib8,
dif7,
fad7,
fid7,
arf6,
bad6,
bid6,
dab6,
dib6,
far6,
fir6,
rif6,
arb5,
bar5,
bra5,
brr5,
rib5,
aid4,
rad4,
rid4,
air3,
rai3,
ria3,
2 letter words:
fa5,
if5,
ab4,
ba4,
bi4,
ad3,
id3,
ai2,
ar2,
