5 letter words:
koker13,
kiore9,
4 letter words:
keek12,
kike12,
kirk12,
keir8,
kero8,
kier8,
kore8,
reek8,
reik8,
reke8,
roke8,
3 letter words:
eek7,
eik7,
eke7,
erk7,
irk7,
kir7,
koi7,
kor7,
oik7,
oke7,
rok7,
ere3,
ire3,
ore3,
ree3,
rei3,
reo3,
roe3,
2 letter words:
ki6,
ko6,
ee2,
er2,
io2,
oe2,
oi2,
or2,
re2,