6 letter words:
biotin8,
5 letter words:
bidon8,
bindi8,
binit7,
biont7,
obiit7,
idiot6,
iodin6,
nitid6,
tondi6,
4 letter words:
bidi7,
bind7,
bond7,
bint6,
bito6,
obit6,
dino5,
dint5,
doit5,
nidi5,
nodi5,
tind5,
inti4,
into4,
oint4,
3 letter words:
bid6,
bod6,
dib6,
dob6,
bin5,
bio5,
bit5,
boi5,
bon5,
bot5,
nib5,
nob5,
obi5,
din4,
dit4,
don4,
dot4,
nid4,
nod4,
tid4,
tod4,
ion3,
nit3,
not3,
tin3,
ton3,
2 letter words:
bi4,
bo4,
ob4,
di3,
do3,
id3,
od3,
in2,
io2,
it2,
no2,
oi2,
on2,
ti2,
to2,