Hi Heylay! Argument - disagreeing/fighting. This word is used very often. Argumentation - using lots of logic to prove something or persuade people. This word is rarely used. Mich https://www.italki.com/michelle

Argument- an exchange of diverging or opposite views, typically a heated or angry one. "I've had an argument with my father" Argumentation- the action or process of reasoning systematically in support of an idea, action, or theory. "lines of argumentation used to support his thesis"