Jargon is a specialized language used by people in a certain profession, job or activity. To an outsider it may seem unintelligible, but to a member of that group it is obvious and useful to explain sometimes esoteric points.

Like many other groups, English teachers have their own jargon: participle, false beginner, fce, chalkface, student-centered and so on. These resources are full of jargon and even the…