6 letter words:
runner6,
5 letter words:
enure5,
rerun5,
4 letter words:
here7,
hern7,
erne4,
nene4,
ruer4,
rune4,
3 letter words:
hen6,
her6,
hue6,
hun6,
ere3,
ern3,
err3,
nee3,
nun3,
ree3,
rue3,
run3,
urn3,
2 letter words:
eh5,
he5,
uh5,
en2,
er2,
ne2,
nu2,
re2,
un2,