5 letter words:
booze16,
ebook11,
4 letter words:
zouk17,
bozo15,
joke15,
jook15,
jouk15,
juke15,
zebu15,
zobo15,
zobu15,
jobe13,
jube13,
ooze13,
ouzo13,
boke10,
boko10,
book10,
bouk10,
buke10,
kobo10,
oboe6,
3 letter words:
zek16,
bez14,
job12,
zoo12,
jeu10,
joe10,
bok9,
keb9,
kob9,
euk7,
kue7,
oke7,
ouk7,
uke7,
boo5,
obe5,
obo5,
2 letter words:
zo11,
jo9,
ko6,
be4,
bo4,
ob4,
oe2,
oo2,
ou2,