6 letter words:
soffit12,
5 letter words:
sowff14,
stiff11,
stuff11,
swift11,
tiffs11,
toffs11,
tuffs11,
foist8,
tofus8,
4 letter words:
offs10,
sowf10,
tiff10,
toff10,
tuff10,
wofs10,
fist7,
fits7,
fous7,
fust7,
owts7,
sift7,
soft7,
stow7,
swot7,
tofu7,
tows7,
twos7,
ufos7,
wist7,
wits7,
wost7,
wots7,
oust4,
outs4,
sout4,
suit4,
tuis4,
utis4,
3 letter words:
iff9,
off9,
wof9,
fit6,
fou6,
ifs6,
oft6,
owt6,
sif6,
sow6,
tow6,
two6,
ufo6,
wis6,
wit6,
wos6,
wot6,
wus6,
ios3,
iso3,
its3,
ous3,
out3,
sit3,
sot3,
sou3,
sui3,
tis3,
tui3,
uts3,
2 letter words:
if5,
of5,
ow5,
wo5,
io2,
is2,
it2,
oi2,
os2,
ou2,
si2,
so2,
st2,
ti2,
to2,
us2,
ut2,