Bodybuilding is working out to build and shape your muscles.
When people say they do bodybuilding, it usually means they go to the gym regularly to lift weights and exercise their bodies. They might focus on specific parts of their physique, like building bigger biceps or a stronger back. Some people even compete in bodybuilding competitions, where they're judged on how muscular and well-defined they look. But for most, bodybuilding is just about feeling good in their own skin and having the energy to keep up with daily life.
A sport in which the aesthetics of muscular development is the basis for competition.
