English to English

noun (n)

• a discussion in which reasons are advanced for and against some proposition or proposal(noun.communication)

  Synonym:
  argument, debate
  

  source: wordnet30
• a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning(noun.cognition)

  Synonym:
  argument, line, line of reasoning, logical argument
  

  source: wordnet30
• The act of forming reasons, making inductions, drawing conclusions, and applying them to the case in discussion; the operation of inferring propositions, not known or admitted as true, from facts or principles known, admitted, or proved to be true.(noun)

  source: webster1913