Jargon is the specialized language of a professional group. Supporters argue that using such language is often necessary for the sake of clarity. Jargon refers to specialized words or vocabulary used by a particular group, profession, or field of study. It typically involves terminology or... 6 meanings: 1. specialized language concerned with a particular subject, culture, or profession 2. language characterized by.... Click for more definitions. Jargon usually means the specialized language used by people in the same work or profession. Internet advertising jargon includes the terms "click throughs" and "page views."