Every trade and profession has a vocabulary that is specific to it. This is known as jargon. People who aren't in that field might have difficulty understanding some of the language. When I was very little, my mom stopped taking me to the pediatrician we had been seeing because she couldn't understand the "medicalese" he used. After all, she wasn't a doctor or nurse.
When you are immersed in a field for a long time, the vocabulary comes so naturally to you that you don't realize that isn't the case for everyone. Recently I was looking through some of my notes from a course I took when I was relatively new to this field. What I discovered were pages filled with definitions of many of the terms I regularly use here. I realized that once upon a time this career-related language was new to me too. I decided to start explaining many of the words and concepts you come across on this site and might not understand. Some of these terms may be familiar to you since they are commonly used in everyday life, the word "career" for example, but I will explain them in the context in which we discuss them here.
I will be building this list, so if there are career-related terms you would like to know more about, please let me know what they are. Don't assume everyone else knows what they mean, because there's a good chance you aren't alone. Here are explanations of three of those terms: