argument vs argumentation

argument and argumentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
argument	Yes	No	No	No
argumentation	Yes	No	No	No

As nouns, argument and argumentation are synonyms defined as:

argument and argumentation: a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning

Other synonyms of argument include line, line of reasoning, logical argument.

As nouns, argument and argumentation are synonyms defined as:

argument and argumentation: a discussion in which reasons are advanced for and against some proposition or proposal

Other synonyms of argument include debate.

argument (noun)	argumentation (noun)
a variable in a logical or mathematical expression whose value determines the dependent variable; if f(x)=y, x is the independent variable	a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning
a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning	a discussion in which reasons are advanced for and against some proposition or proposal
a discussion in which reasons are advanced for and against some proposition or proposal
a summary of the subject or plot of a literary work or play or movie
a fact or assertion offered as evidence that something is true
a contentious speech act; a dispute where there is strong disagreement
(computer science) a reference or value that is passed to a function, procedure, subroutine, command, or program