7 letter words:
kreuzer20,
6 letter words:
kereru10,
renker10,
5 letter words:
kerne9,
knurr9,
kurre9,
enure5,
rerun5,
4 letter words:
zerk17,
keen8,
kern8,
knee8,
knur8,
kune8,
nerk8,
neuk8,
nuke8,
reek8,
reke8,
renk8,
erne4,
nurr4,
reen4,
ruer4,
rune4,
3 letter words:
zek16,
rez12,
zee12,
eek7,
eke7,
erk7,
euk7,
ken7,
kue7,
nek7,
uke7,
een3,
ene3,
ere3,
ern3,
err3,
nee3,
nur3,
ree3,
ren3,
rue3,
run3,
ure3,
urn3,
2 letter words:
ee2,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,