 The noun “argument” and verb “to argue” can describe various things in ordinary language and in different academic disciplines (O’Keefe 1982; Wenzel 1980 [1992]). “Argument” may identify a logical premise-conclusion complex, a speech act, or a dialogical exchange. Arguments may play off other arguments or support each other; smaller arguments can serve as sub-arguments inside larger arguments to which they contribute. Following the practice of Anglophone philosophers, this entry uses the term “argument” only to indicate a premise-conclusion complex that may involve sub-arguments. “Argumentation” also includes the larger context belonging to the activity of “arguing”, understood as the offering of reasons.