5 letter words:
kojis16,
fisks12,
sijos12,
skios9,
4 letter words:
koji15,
fisk11,
joss11,
kifs11,
sijo11,
kiss8,
kois8,
koss8,
oiks8,
skio8,
skis8,
foss7,
isos4,
3 letter words:
kif10,
kis7,
koi7,
kos7,
oik7,
sik7,
ski7,
ifs6,
sif6,
ios3,
iso3,
sis3,
sos3,
2 letter words:
jo9,
ki6,
ko6,
if5,
of5,
io2,
is2,
oi2,
os2,
si2,
so2,