5 letter words:
swift11,
foist8,
tofus8,
4 letter words:
fist7,
fits7,
iwis7,
sift7,
soft7,
stow7,
swot7,
tofu7,
tows7,
twos7,
wist7,
wits7,
wost7,
wots7,
oust4,
outs4,
suit4,
tuis4,
3 letter words:
fit6,
fou6,
ifs6,
oft6,
sow6,
tow6,
two6,
wis6,
wit6,
wos6,
wot6,
its3,
out3,
sit3,
sot3,
sou3,
tis3,
tui3,
uts3,
2 letter words:
if5,
of5,
ow5,
wo5,
is2,
it2,
oi2,
os2,
si2,
so2,
ti2,
to2,
us2,
ut2,