
List of conspiracy theories - Wikipedia
Conspiracy theorists have long posited a plot by organizations such as NASA to conceal the existence of a large planet in the Solar System known as Nibiru or Planet X, which is alleged to pass close …
CONSPIRACY Definition & Meaning - Merriam-Webster
conspiracy implies a secret agreement among several people usually involving treason or great treachery.
Conspiracy theory | Definition, Examples, & Facts | Britannica
Jan 19, 2026 · Conspiracy theory, an attempt to explain harmful or tragic events as the result of the actions of a small powerful group. Such explanations reject the accepted narrative surrounding those …
CONSPIRACY | definition in the Cambridge English Dictionary
CONSPIRACY meaning: 1. the activity of secretly planning with other people to do something bad or illegal: 2. a…. Learn more.
conspiracy noun - Definition, pictures, pronunciation and usage notes ...
a secret plan by a group of people to do something harmful or illegal. They were charged with conspiracy to murder. He's the sort of person who sees a conspiracy around every corner. I …
CONSPIRACY definition in American English | Collins English Dictionary
A conspiracy is an agreement between a group of people which other people think is wrong or is likely to be harmful. It's all part of a conspiracy to dispense with the town center altogether and move …
What Are Conspiracy Theories? - Verywell Mind
Dec 15, 2025 · Learn about the history of conspiracy theories, theories about why we believe in them, and some examples of well-known conspiracy theories.
Conspiracy Theories - The Decision Lab
Conspiracy theories are beliefs that certain events or situations result from hidden, often malicious plots by powerful people or groups.
CONSPIRACY Definition & Meaning | Dictionary.com
What does conspiracy mean? Conspiracy most commonly means a secret plan by multiple people to do something evil or illegal. Conspiracy can also refer to the act of making such plans—the act of …
In Today’s Conspiracy Theories, the Lack of Evidence Is the Evidence
Mar 4, 2026 · The conspiracy theories of our time seem fixated on an absence of clues. By Peter C. Baker In Nick Shirley’s mega-viral YouTube videos alleging social-services fraud in Minnesota, the …