5 letter words:
borts7,
ports7,
prost7,
sport7,
strop7,
4 letter words:
bops8,
bort6,
bots6,
bros6,
opts6,
orbs6,
port6,
post6,
pots6,
pros6,
robs6,
sorb6,
spot6,
stob6,
stop6,
tops6,
trop6,
orts4,
rots4,
sort4,
tors4,
3 letter words:
bop7,
bos5,
bot5,
bro5,
ops5,
opt5,
orb5,
pot5,
pro5,
pst5,
rob5,
sob5,
sop5,
top5,
ors3,
ort3,
rot3,
sot3,
tor3,
2 letter words:
bo4,
op4,
or2,
os2,
so2,
to2,