Which of the following words is closest in meaning to “Nomenclature”?

Nomenclature means a system of names or terms.

• Correct answer - terminology: it has the same meaning as Nomenclature.
• pseudonym: a false name - wrong, it does not mean the same as Nomenclature.
• basic facts of matter: the simple facts of a subject - wrong, it does not mean the same as Nomenclature.
• stubborn: refusing to change one's mind - wrong, it does not mean the same as Nomenclature.