This is the 6918th most frequent French word.
luxembourgeoise
Luxembourgeoise: A female native or inhabitant of Luxembourg.
The word 'luxembourgeoise' is an adjective modifying 'entreprise' to indicate the nationality/origin of the company.
Cette entreprise est luxembourgeoise et fabrique des chocolats.
This company is Luxembourgish and manufactures chocolates.
The word 'luxembourgeoise' is used as a feminine singular noun to describe the person's nationality or origin.
Elle est luxembourgeoise et parle couramment trois langues.
She is Luxembourgish and speaks three languages fluently.
The word 'luxembourgeoise' is an adjective modifying 'spécialité' to indicate its cultural/national origin.