This is the 10640th most frequent French word.
millénaire
A millennium; a period of one thousand years.
Here, 'millénaire' as an adjective describes Paris as having existed for a millennium, highlighting its age and historical significance.
Paris est une ville millénaire connue dans le monde entier.
Paris is a millennial city known worldwide.
In this sentence, 'millénaire' as a noun refers to the span of one thousand years, describing a specific future period.
Le prochain millénaire commencera dans quelques décennies.
The next millennium will begin in a few decades.
Here, 'millénaire' as an adjective emphasizes the ancient and longstanding nature of the tradition.