6 letter words:
funker13,
funner9,
5 letter words:
furze17,
4 letter words:
zerk17,
fuze16,
funk11,
kerf11,
kern8,
knur8,
kune8,
neuk8,
nuke8,
enuf7,
fern7,
rune4,
3 letter words:
zek16,
fez15,
kef10,
ken7,
kue7,
uke7,
fen6,
fer6,
feu6,
fun6,
fur6,
ref6,
ern3,
nun3,
rue3,
run3,
urn3,
2 letter words:
ef5,
fe5,
en2,
er2,
ne2,
nu2,
re2,
un2,