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Anything that is questionable or causes doubt, especially an argument or a claim. In branches of philosophy like logic, much of the exercise is to distinguish what is dubious and what is probable or certain. Much of illogic rests on dubious assumptions or data or conclusions, with rhetoric, whitewashing, and deception being in the same category. Wikipedia does not have an article with this exact name. ... Wiktionary logo Wiktionary[1] is a Wikimedia Foundation project intended to be a free wiki dictionary (including thesaurus and lexicon) in every language. ... Wikipedia does not have an article with this exact name. ... Doubt is uncertainty in the context of trust (where it takes the form of distrust), action, decision or faith. ... Logic, from Classical Greek λόγος (logos), originally meaning the word, or what is spoken, (but coming to mean thought or reason) is most often said to be the study of criteria for the evaluation of arguments, although the exact definition of logic is a matter of controversy among philosophers. ... Rhetoric (from Greek ρήτωρ, rhêtôr, orator) is the art or technique of persuasion, usually through the use of language. ... Censorship is the systematic use of group power to broadly control freedom of speech and expression, largely in regard to secretive matters. ... Deception (or mystification) is to intentionally distort the truth in order to mislead others. ...