6 letter words:
cratch13,
5 letter words:
catch12,
chart10,
ratch10,
arhat8,
carat7,
4 letter words:
arch9,
char9,
chat9,
tach9,
caca8,
haar7,
hart7,
rath7,
tahr7,
acta6,
cart6,
3 letter words:
aah6,
aha6,
hat6,
rah6,
act5,
arc5,
car5,
cat5,
art3,
rat3,
tar3,
2 letter words:
ah5,
ha5,
aa2,
ar2,
at2,
ta2,