This is the 439th most frequent French word.
neuf
The French word "neuf" means "nine" or "new" (when masculine).
Here, 'neuf' (becomes 'neuve' to agree with 'voiture') is used to mean brand new, emphasizing the item's recent manufacturing or unused condition.
Je viens d'acheter une voiture neuve.
I just bought a new car.
Here, 'neuf' represents the number nine, showing a numerical usage.
Nous avons terminé à neuf heures précises.
We finished at nine o'clock sharp.
In this context, 'neuf' refers to something modern or contemporary, often in design or style.