5 letter words:
joker16,
4 letter words:
jerk15,
joke15,
jook15,
fork11,
kerf11,
kero8,
kore8,
koro8,
roke8,
rook8,
fore7,
froe7,
orfe7,
roof7,
3 letter words:
joe10,
jor10,
kef10,
erk7,
kor7,
oke7,
rok7,
erf6,
fer6,
foe6,
for6,
fro6,
oof6,
orf6,
ref6,
oor3,
ore3,
reo3,
roe3,
roo3,
2 letter words:
jo9,
ko6,
ef5,
fe5,
of5,
er2,
oe2,
oo2,
or2,
re2,