Definition of definitive

The word "definitive" has its roots in Latin, where it is derived from the word "definire", meaning "to limit" or "to determine". The Latin term was used to describe something that had a clear and distinct definition or border. The word "definitive" was first introduced into the English language in the 14th century, and initially meant "acting as a boundary or limit". Over time, the meaning of the word expanded to encompass a sense of finality, completeness, or authoritative. Today, "definitive" is often used to describe something that is considered the ultimate or most authoritative version, such as a definitive guide or a definitive answer. In addition to its literal meaning, "definitive" can also convey a sense of precision, clarity, and assuredness, making it a valuable word in a variety of contexts, from science and medicine to literature and everyday conversation.