6 letter words:
kouroi10,
5 letter words:
iroko9,
koori9,
guiro6,
4 letter words:
zouk17,
orzo13,
ouzo13,
zori13,
gook9,
gouk9,
grok9,
koro8,
koru8,
kuri8,
rook8,
giro5,
goor5,
gori5,
3 letter words:
zig13,
riz12,
zoo12,
irk7,
kir7,
koi7,
kor7,
oik7,
ouk7,
rok7,
gio4,
goo4,
gor4,
gur4,
rig4,
rug4,
oor3,
our3,
roo3,
2 letter words:
zo11,
ki6,
ko6,
gi3,
go3,
gu3,
ug3,
io2,
oi2,
oo2,
or2,
ou2,
ur2,