6 letter words:
fracas11,
acarus8,
5 letter words:
curfs10,
scarf10,
scurf10,
afars8,
arcus7,
sacra7,
scaur7,
auras5,
4 letter words:
curf9,
afar7,
arfs7,
furs7,
surf7,
arcs6,
cars6,
casa6,
crus6,
curs6,
scar6,
aura4,
sura4,
ursa4,
3 letter words:
arf6,
far6,
fas6,
fur6,
arc5,
car5,
cru5,
cur5,
sac5,
aas3,
ars3,
ras3,
sau3,
2 letter words:
fa5,
aa2,
ar2,
as2,
us2,