4 letter words:
foys10,
fons7,
fous7,
funs7,
nosy7,
noys7,
ufos7,
yous7,
nous4,
onus4,
3 letter words:
foy9,
fon6,
fou6,
fun6,
noy6,
nys6,
ony6,
oys6,
sny6,
soy6,
syn6,
ufo6,
yon6,
yos6,
you6,
yus6,
nos3,
nus3,
ons3,
ous3,
son3,
sou3,
sun3,
uns3,
2 letter words:
fy8,
ny5,
of5,
oy5,
yo5,
yu5,
no2,
nu2,
on2,
os2,
ou2,
so2,
un2,
us2,