WordWeb Online

1. Finish a task completely
   "I finally polished off this homework assignment";
   - get through, wrap up [informal], finish off, mop up, clear up, finish up
    
2. Kill intentionally and with premeditation
   - murder, slay [literary], hit, dispatch, bump off [informal], off [N. Amer, informal], remove, croak
    
3. Complete eating all the food on one's plate or on the table
   "She polished off the remaining potatoes";
   - eat up, finish

Derived forms: polishing off, polishes off, polished off

See also: demote

Type of: complete, eat, finish, kill