6 letter words:
korkir14,
5 letter words:
zorro14,
iroko9,
koori9,
4 letter words:
orzo13,
zori13,
kirk12,
kook12,
koro8,
rook8,
3 letter words:
riz12,
zoo12,
irk7,
kir7,
koi7,
kor7,
oik7,
rok7,
oor3,
roo3,
2 letter words:
zo11,
ki6,
ko6,
io2,
oi2,
oo2,
or2,