7 letter words:
biotite9,
5 letter words:
boite7,
4 letter words:
bite6,
bitt6,
bott6,
obit6,
titi4,
toit4,
tote4,
3 letter words:
bet5,
bio5,
bit5,
bot5,
obe5,
obi5,
tet3,
tie3,
tit3,
toe3,
tot3,
2 letter words:
be4,
bi4,
bo4,
et2,
it2,
oe2,
oi2,
ti2,
to2,
