Noun gym suit has 1 sense

1. gym suit - clothes prescribed for wear while participating in gymnastic exercise
   --₁ is a kind of sportswear, athletic wear, activewear
   

Gym Suit

A gym suit, also known as an athletic suit or workout suit, refers to a set of clothing typically worn during physical exercise or athletic activities. It typically consists of a matching pair of shirt and shorts, or sometimes a shirt and leggings, made from breathable and stretchable fabrics to provide comfort and flexibility when engaging in various exercises.

Examples:

• She wore her gym suit to the fitness class.
• He prefers to wear a gym suit for his daily workouts.
• The gym suit she bought online arrived in the wrong size.

Variations and Related Terms:

• Gym shirt
• Gym shorts
• Workout leggings
• Athletic clothing