The document discusses the key terms of denotation, connotation, and predicables. It defines denotation as the basic or dictionary meaning of a word, while connotation refers to the emotions, thoughts, and associations attached to a word. It provides examples of how the terms 'man' and 'animal' relate through their denotation and connotation. The document then explains the five predicables - genus, species, differentia, property, and accident - and how they describe relationships between a predicate and subject in a proposition.