Central defender is a term used in football to describe a player who plays in a central position in defence. However, there are several synonyms that can be used to describe this position. One possible synonym is centre-back, which is commonly used in British English. Another possible synonym is central back, which is used in American English. Other synonyms include stopper, defensive midfielder, libero, and sweeper. These terms are generally used to describe the role of the player, rather than their position on the field. Regardless of the terminology used, the central defender is a vital component of any successful football team, providing a solid foundation at the back and ensuring that the opposition's attacks are nullified.