This is the 2349th most frequent French word.
policière
Female police officer.
In this sentence, 'policière' is an occupational noun used to describe a female member of law enforcement.
La policière résout les enquêtes avec précision.
The policewoman solves the investigations with accuracy.
Here, 'policière' functions as an adjective, modifying 'voisine' to indicate that the neighbor is involved in police work.
Je parle souvent avec ma voisine policière.
I often talk with my neighbor who is a policewoman.
In this usage, 'policière' is a specific noun referring to a particular female police officer.