4 letter words:
huff13,
haft10,
raff10,
ruff10,
tuff10,
fart7,
frat7,
hart7,
haut7,
hurt7,
raft7,
rath7,
ruth7,
tahr7,
thru7,
tufa7,
turf7,
3 letter words:
aff9,
aft6,
arf6,
far6,
fat6,
fur6,
hat6,
hut6,
rah6,
art3,
rat3,
rut3,
tar3,
tau3,
uta3,
2 letter words:
ah5,
fa5,
ha5,
uh5,
ar2,
at2,
ta2,
ut2,