5 letter words:
spitz16,
zoist14,
bitos7,
obits7,
posit7,
topis7,
4 letter words:
zips15,
sitz13,
zits13,
bisk10,
boks10,
bosk10,
kips10,
kobs10,
kops10,
skip10,
spik10,
bops8,
kist8,
kits8,
kois8,
oiks8,
skio8,
skit8,
bios6,
bist6,
bito6,
bits6,
bois6,
bots6,
obis6,
obit6,
opts6,
piso6,
pits6,
pois6,
post6,
pots6,
spit6,
spot6,
stob6,
stop6,
tips6,
topi6,
tops6,
3 letter words:
biz14,
poz14,
zip14,
zit12,
zos12,
bok9,
kip9,
kob9,
kop9,
bop7,
kis7,
kit7,
koi7,
kos7,
oik7,
sik7,
ski7,
tsk7,
bio5,
bis5,
bit5,
boi5,
bos5,
bot5,
obi5,
obs5,
ops5,
opt5,
pis5,
pit5,
poi5,
pos5,
pot5,
psi5,
pst5,
sib5,
sip5,
sob5,
sop5,
tip5,
top5,
ios3,
iso3,
its3,
sit3,
sot3,
tis3,
2 letter words:
zo11,
ki6,
ko6,
bi4,
bo4,
ob4,
op4,
pi4,
po4,
io2,
is2,
it2,
oi2,
os2,
si2,
so2,
st2,
ti2,
to2,