5 letter words:
korun9,
krone9,
rouen5,
4 letter words:
keno8,
kern8,
kero8,
knur8,
kore8,
koru8,
kune8,
nerk8,
neuk8,
nork8,
nuke8,
renk8,
roke8,
euro4,
oner4,
ourn4,
rone4,
roue4,
rune4,
3 letter words:
erk7,
euk7,
ken7,
kon7,
kor7,
kue7,
nek7,
oke7,
ouk7,
rok7,
uke7,
eon3,
ern3,
nor3,
nur3,
one3,
ore3,
our3,
ren3,
reo3,
roe3,
rue3,
run3,
ure3,
urn3,
2 letter words:
ko6,
en2,
er2,
ne2,
no2,
nu2,
oe2,
on2,
or2,
ou2,
re2,
un2,
ur2,