Lifting Weights

I've been involved in an exercise program called Crossfit for a few months now. It started with my son, who's been doing it for a couple of years, convincing me to get involved. He's been my "coach" since he's taken weight lifting classes in school and was a TA for the instructor. But now that he's gone off to college I had to find someone else to be the coach.
To start off with CrossFit you go through a series of classes which introduce you to the exercises that are used. It's all free weights, no machines allowed, and pullups, pushups, squats... Each with their requirements for precision in how they are executed. It is dependent on the coach to assure that one learns how to perform these with precision, so you don't get hurt.
What I have found is that the language or jargon if you will, is very specific and associated with an ability to perform atheletically at a high level. For instance the Squat has a very precise set of requirements to be a CrossFit Squat: chest up, lumbar curve, tibia perpendicular to the ankle... If you aren't doing it this way, it's not a squat. Squat has a precise definition.
Our work with body's also has a vocabulary that is precise. The proper use of our precise vocabulary is one way that we can tell if one of our colleagues is well trained or educated. Becoming familiar with our vocabulary takes effort, that's what learning or education is; the expenditure of effort to acquire some new skill or knowledge. Once we've acquired the knowledge or skill its application requires much less effort.