What is the sport of Weightlifting?

When one mentions weightlifting, people often think of bodybuilding, powerlifting, exercising at the gym, or the television event 'Worlds Strongest Man' on ESPN. The sport of 'Weightlifting' is none of these. Instead it is the Olympic sport consisting of two lifts, the snatch and the clean and jerk. However, a few athletes involved in Weightlifting are also involved in other strength sports.