6 letter words:
fundus10,
5 letter words:
dufus9,
funds9,
durns6,
durrs6,
nurds6,
4 letter words:
fuds8,
fund8,
funs7,
furs7,
surf7,
duns5,
durn5,
durr5,
nurd5,
surd5,
urds5,
runs4,
urns4,
urus4,
3 letter words:
fud7,
fun6,
fur6,
dun4,
urd4,
nus3,
run3,
sun3,
uns3,
urn3,
2 letter words:
nu2,
un2,
us2,