8 letter words:
truckful17,
6 letter words:
kultur10,
5 letter words:
truck11,
4 letter words:
fuck13,
duck11,
luck10,
ruck10,
tuck10,
curf9,
kudu9,
kuru8,
lurk8,
turk8,
crud7,
curd7,
duct7,
furl7,
turf7,
cult6,
curl6,
curt6,
turd5,
3 letter words:
fud7,
cud6,
flu6,
fur6,
cru5,
cur5,
cut5,
urd4,
rut3,
ulu3,
2 letter words:
ut2,