Jargon is specialized language used by people in a particular profession, hobby, or group that outsiders often find confusing or incomprehensible. Doctors use medical jargon like “myocardial infarction” instead of saying “heart attack.” Computer programmers talk about “debugging code” and “pushing to production.” Skateboarders have their own jargon with terms like “ollie” and “kickflip.”

Every field develops its own jargon because specialists need precise words to communicate complex ideas quickly with each other. When a chef tells the kitchen to “julienne the carrots,” everyone understands exactly what kind of cut is needed. The problem comes when people forget they're using jargon and confuse others who don't know these special terms.

Sometimes people use jargon to sound important or to exclude others from understanding, which defeats the purpose of communication. If a teacher explains a science concept using nothing but technical jargon without defining terms, students get lost and frustrated. Good communicators know when to use jargon with fellow experts and when to switch to plain language so everyone can follow along. The key is matching your words to your audience.