5 letter words:
cuifs10,
curfs10,
ficus10,
scurf10,
4 letter words:
cuif9,
curf9,
fisc9,
fuci9,
firs7,
furs7,
rifs7,
surf7,
cris6,
crus6,
curs6,
uric6,
3 letter words:
fir6,
fur6,
ifs6,
rif6,
cis5,
cru5,
cur5,
sic5,
sir3,
sri3,
2 letter words:
if5,
is2,
si2,
us2,