6 letter words:
kibitz21,
5 letter words:
bortz16,
orbit7,
oribi7,
torii5,
4 letter words:
ritz13,
ziti13,
zori13,
birk10,
bork10,
tiki8,
biro6,
bort6,
brio6,
brit6,
obit6,
riot4,
roti4,
tiro4,
tori4,
trio4,
3 letter words:
biz14,
zit12,
kob9,
irk7,
kir7,
kit7,
koi7,
kor7,
bio5,
bit5,
bot5,
bro5,
obi5,
orb5,
rib5,
rob5,
ort3,
rot3,
tor3,
2 letter words:
ki6,
bi4,
bo4,
it2,
oi2,
or2,
ti2,
to2,