6 letter words:
kernel10,
5 letter words:
kerne9,
kneel9,
leben7,
rebel7,
4 letter words:
berk10,
kerb10,
keel8,
keen8,
kern8,
knee8,
leek8,
leke8,
reek8,
been6,
beer6,
bene6,
bree6,
bren6,
erne4,
leer4,
reel4,
3 letter words:
eek7,
eke7,
elk7,
ken7,
lek7,
bee5,
bel5,
ben5,
neb5,
reb5,
eel3,
ere3,
ern3,
lee3,
nee3,
ree3,
2 letter words:
be4,
el2,
en2,
er2,
ne2,
re2,