It's often used before a noun to indicate possession or origin, similar to "of" in English.
Here are some examples:
* "La ville de la joie" (French) translates to "The city of joy" (English).
* "Le vin de la région" (French) translates to "The wine of the region" (English).
* "La fille de la reine" (French) translates to "The queen's daughter" (English).
It's important to note that the word "de" can have different meanings in French depending on the context, but in the phrase "de la", it always means "of the".