4 letter words:
sizy16,
zits13,
yoks11,
kist8,
kits8,
kois8,
skit8,
toys7,
3 letter words:
zit12,
sky10,
yok10,
kis7,
kit7,
koi7,
kos7,
ski7,
tsk7,
soy6,
sty6,
toy6,
its3,
sit3,
sot3,
tis3,
2 letter words:
ki6,
oy5,
yo5,
is2,
it2,
oi2,
os2,
si2,
so2,
ti2,
to2,