5 letter words:
iroko9,
koori9,
4 letter words:
kilo8,
kolo8,
koro8,
lirk8,
look8,
rook8,
loir4,
loor4,
olio4,
roil4,
3 letter words:
ilk7,
irk7,
kir7,
koi7,
kor7,
oik7,
rok7,
loo3,
lor3,
oil3,
oor3,
roo3,
2 letter words:
ki6,
ko6,
io2,
li2,
lo2,
oi2,
oo2,
or2,