For debaters who play fast and loose with logic buzzwords
Argument: a reason or set of reasons given with the aim of persuading others that an action or idea is right or wrong.
Evidence: the available body of facts or information indicating whether a belief or proposition is true or valid.
Proof: evidence or argument establishing a fact or the truth of a statement.
Fact: a thing that is indisputably the case.
Truth: the quality or state of being true.
Speculation: the forming of a theory or conjecture without firm evidence.
Logic: reasoning conducted or assessed according to strict principles of validity.
Proposition: a statement or assertion that expresses a judgment or opinion.
Opinion: a view or judgment formed about something, not necessarily based on fact or knowledge.
Conjecture: an opinion or conclusion formed on the basis of incomplete information.
Judgment: the ability to make considered decisions or come to sensible conclusions.
Conclusion: a judgment or decision reached by reasoning.
Theory: a supposition or a system of ideas intended to explain something.
Hypothesis: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Supposition: an uncertain belief.
Belief: an acceptance that a statement is true or that something exists.
Validity: the quality of being logically or factually sound.
Soundness: the quality of being based on valid reason or good judgment.
Cogency: the quality of being clear, logical, and convincing.
Lucidity: clarity of expression.
Intelligible: ability to comprehend.
Comprehend: grasp mentally; understand.
Fallacy: a mistaken belief, especially one based on unsound argument.