5 letter words:
swapt10,
4 letter words:
paws9,
spaw9,
swap9,
waps9,
wasp9,
apps8,
paps8,
staw7,
swat7,
taws7,
twas7,
wast7,
wats7,
apts6,
past6,
pats6,
spat6,
stap6,
taps6,
3 letter words:
paw8,
twp8,
wap8,
app7,
pap7,
saw6,
taw6,
twa6,
was6,
wat6,
apt5,
asp5,
pas5,
pat5,
pst5,
sap5,
spa5,
tap5,
sat3,
tas3,
2 letter words:
aw5,
pa4,
as2,
at2,
st2,
ta2,