Misrepresentation or suppression of the truth or facts; an act or instance of this.
Specifically. Ecclesiastical Law. Suppression of the truth or concealment of facts in order to obtain a dispensation, etc.
Suppression of the truth in order to obtain gifts of escheat, etc. historical after 18th century.
In Kantian philosophy: the confusion of sensory elements in experience with conceptual elements belonging to understanding and reason, especially as leading to the improper application of concepts belonging to subjective experience to the objective world of things in themselves; an instance of this.