A turnaround collar is a type of collar that can be reversed to create a different appearance. There are several synonyms for this collar, including reversible collar, flip collar, detachable collar, and convertible collar. All of these synonyms refer to the same type of collar that can be turned inside out to create a different style. Some other terms that may be used to describe a turnaround collar include a flip-over collar, a dual-collar, or a two-sided collar. Regardless of the name, these collars offer versatility and style options for any outfit or occasion.