Memory Game Argumentative VocabularyOnline version This weeks vocabulary words by Heather Stoltz Something that has been proven true The main points made in your essay to justify your claim. To try to establish the truth of something Prove Biased Counter Claim A personal view, belief, or judgement. Rebuttal Opinion A piece of writing that focuses more on opinions than facts. Argument Claim Reasos Reasons why the counter-claim is as valid as the claim. Evidence A statement that opposes the claim - shows the other side. A statement that the author is trying to prove is true. Fact Proof that the author uses to back u a claim. The best evidence is factual. A process of feelings towards a certain topic.