The term 'dead ringer' is used to describe something that is an exact REPLICA or copy of something else. The crossword solutions for this term include 'REPLICA' (7 letters), 'ALIKE' (5 letters), 'CLONE' (5 letters), 'KNELL' (5 letters), 'DOUBLE' (6 letters), 'IDENTICAL' (9 letters), 'LOOKALIKE' (9 letters), 'carboncopy' (10 letters), 'mirrorimage' (11 letters), and 'CORRESPONDENCE' (14 letters). All of these words can be used to describe something that is a perfect duplicate of another object or person.