Origin: Latin suffix -ive
Definitive has 5 different meanings across 1 category:
a word, such as a definite article or demonstrative pronoun, that defines or limits something
"The words 'the' and 'this' function as definitive articles in English grammar."
In plain English: There is no noun form of definitive; it is only an adjective used to describe something that is absolutely final or completely accurate.
"The definitive edition of that classic novel finally arrived in bookstores yesterday."
Usage: This noun refers to specific words like articles and pronouns that restrict the meaning of other terms in a sentence. It is distinct from the more common adjective form describing an ultimate authority on a subject.
clearly defined or formulated
"the plain and unequivocal language of the laws"
supplying or being a final or conclusive settlement
"a definitive verdict"
"a determinate answer to the problem"
explicitly defined
"The new handbook serves as the definitive guide to our company's safety protocols, leaving no room for ambiguity in its rules."
The word definitive entered English from Middle French, where it originally meant something that serves as a final decision or conclusion. Its meaning has remained consistent over time, referring to the most authoritative version of a text or statement.