1. [N. Amer, informal] A person who competes in organized sports or physical activities, typically demonstrating high levels of skill, strength, agility, or endurance
   "The jock trained rigorously for the upcoming competition";
   - athlete
    
2. A support for the genitals worn by men engaging in strenuous exercise
   "The football player adjusted his jock before the game";
   - athletic supporter, supporter, suspensor, jockstrap
    
3. A person who announces and plays popular recorded music
   "The jock kept the dance floor packed all night";
   - disk jockey [N. Amer], disc jockey, d.j. [informal], DJ, deejay [informal], selecta [Brit, informal]

Derived forms: jocks

Type of: broadcaster, contestant, men's clothing, protective garment

Encyclopedia: Jock, Charles