6 letter words:
burnie8,
rubine8,
unrein6,
5 letter words:
benni7,
biner7,
brine7,
bruin7,
burin7,
rubin7,
ennui5,
inner5,
inrun5,
inure5,
inurn5,
renin5,
urine5,
4 letter words:
bein6,
beni6,
bien6,
bier6,
bine6,
brei6,
bren6,
brie6,
brin6,
bunn6,
burn6,
rube6,
unbe6,
iure4,
nine4,
rein4,
rine4,
ruin4,
rune4,
3 letter words:
ben5,
bin5,
bru5,
bun5,
bur5,
neb5,
nib5,
nub5,
reb5,
rib5,
rub5,
urb5,
ern3,
inn3,
ire3,
nie3,
nun3,
nur3,
rei3,
ren3,
rin3,
rue3,
run3,
uni3,
ure3,
urn3,
2 letter words:
be4,
bi4,
en2,
er2,
in2,
ne2,
nu2,
re2,
un2,
ur2,