6 letter words:
rebeck14,
5 letter words:
becke13,
creek11,
rebec9,
4 letter words:
beck12,
berk10,
kerb10,
reck10,
reek8,
reke8,
beer6,
bere6,
bree6,
cere6,
cree6,
3 letter words:
keb9,
eek7,
eke7,
erk7,
bee5,
cee5,
reb5,
rec5,
ere3,
ree3,
2 letter words:
be4,
ee2,
er2,
re2,