This document discusses key aspects of language that are important for critical thinking: word choice, ambiguity, definition, and intensity. It explains that word choice is important to match the audience, time, and context. Ambiguity can generate multiple unrelated meanings and cause confusion. Definition clarifies intended meanings both denotatively and connotatively. Intensity of language, through negative words, emotive words, or abusive language, can negatively impact communication. Proper language use is important for credibility and effective discussion.