athlete , n. meanings, etymology, pronunciation and more in the Oxford English Dictionary Discover an IOC initiative created by athletes for athletes to support them throughout their journey in sport on and off the field. Know more. ATHLETE meaning: 1. a person who is very good at sports or physical exercise, especially one who competes in…. Learn more. Learn about the meaning, characteristics, and achievements of athletes in different sports and contexts. Find out how genetics, training, and diet affect athletic performance and health.