(countable, also figurative) A fact or statement used to support a proposition and is also a series of propositions organized to form a logical conclusion.

(countable) A process of reasoning; argumentation.

(countable) An abstract or summary of the content of a literary work such as a book, a poem or a major section such as a chapter, included in the work before the content itself; the contents themselves.

(countable) A verbal dispute; a quarrel.

(by extension, humorous or euphemistic) Any dispute, altercation, or collision.

(countable, linguistics) Any of the phrases that bears a syntactic connection to the verb of a clause.

(countable, mathematics) A noun "argument" represents the independent variable of a function, the phase of a complex number, and a quantity on which the calculation of another quantity depends.

(countable, programming) A value or reference passed to a function, or an actual parameter at a function call.