This document defines and provides examples of slang, jargon, and doublespeak. Slang is informal words or phrases typically used within social groups, while jargon refers to specialized terminology used in a profession. Examples of medical, political, and financial jargon are given. Doublespeak is a form of misleading jargon used to confuse or persuade. The document notes it can be difficult to distinguish slang and jargon as specialized terms may become more common language over time.