It can be used as:
* An adjective: "La cuisine française est délicieuse" (French cuisine is delicious)
* A noun: "Les Français sont très accueillants" (The French people are very welcoming)
* A nationality: "Je suis français" (I am French)
It comes from the Latin "francus," which originally referred to the Franks, a Germanic tribe that conquered Gaul (modern-day France) in the 5th century. The Franks played a major role in shaping French identity and culture.