conspiracy theory
noun /kənˈspɪrəsi θɪəri/
/kənˈspɪrəsi θiːəri/, /kənˈspɪrəsi θɪri/
- the belief that a secret but powerful organization is responsible for an event
- They sought to account for the fatal crash in terms of a conspiracy theory.
- A lot of people subscribe to the conspiracy theory.