Speak like an insider! Welcome to Snopes-tionary, where we'll define a term or piece of fact-checking lingo that we use on the Snopes team. Have a term you want us to explain? Let us know. Also known ...

Clear and rational thinking is essential for effective decision-making and communication in the work place. However, logical fallacies—errors in reasoning that undermine the logic of an argument—are ...

Logical fallacies are flaws in reasoning. They are often called informal fallacies. It's becoming more common for people to call out these fallacies by name. You often hear accusations of people ...