5 letter words:
kaiak13,
korai9,
4 letter words:
kaka12,
kaki12,
kirk12,
arak8,
kora8,
okra8,
raki8,
aria4,
raia4,
3 letter words:
ark7,
irk7,
kir7,
koa7,
koi7,
kor7,
oak7,
oka7,
air3,
oar3,
ora3,
rai3,
ria3,
2 letter words:
ka6,
ki6,
aa2,
ai2,
ar2,
oi2,
or2,