5 letter words:
kiwis12,
4 letter words:
fisk11,
kifs11,
kiwi11,
kows11,
woks11,
sowf10,
wofs10,
kois8,
oiks8,
skio8,
iwis7,
3 letter words:
kif10,
kow10,
wok10,
wof9,
kis7,
koi7,
kos7,
oik7,
sik7,
ski7,
ifs6,
iwi6,
sif6,
sow6,
wis6,
wos6,
ios3,
iso3,
2 letter words:
ki6,
ko6,
if5,
of5,
ow5,
wo5,
io2,
is2,
oi2,
os2,
si2,
so2,