6-letter word: O V E L C R

3 letter words:
COL
COR
OLE
ORC
ORE
REC
REV
VOE

4 letter words
CORE
COVE
LORE
LOVE
OVER
ROLE
ROVE
VOLE

5 Letter Words
CLOVE
COVER
LOVER

6 letter words
CLOVER