When it comes to comfortable and casual clothing, there are few options more popular than the trusty track-suit. This versatile outfit is perfect for lounging around the house, running errands, or hitting the gym. While the term "track-suit" is most commonly used, there are a number of other synonyms that can also be used to describe this type of clothing. Some of the most popular options include sweat-suit, jogging suit, athletic suit, and warm-up suit. Each of these terms is equally appropriate and can be used interchangeably when referring to this popular type of clothing.