6 letter words:
kybosh18,
5 letter words:
bosky14,
kybos14,
4 letter words:
kybo13,
yoks11,
boks10,
bosk10,
hoys10,
kobs10,
bohs9,
bosh9,
boys9,
hobs9,
sybo9,
yobs9,
3 letter words:
sky10,
yok10,
bok9,
hoy9,
kob9,
shy9,
boh8,
boy8,
bys8,
hob8,
yob8,
kos7,
hos6,
ohs6,
oys6,
soh6,
soy6,
yos6,
bos5,
obs5,
sob5,
2 letter words:
ky9,
by7,
ko6,
ho5,
oh5,
oy5,
sh5,
yo5,
bo4,
ob4,
os2,
so2,
