This is the 1232nd most frequent French word.
julien
"Julien" is a French name, equivalent to "Julian" in English.
Here, "Julien" is used as a proper noun referring to a person's name.
Julien aime lire des livres historiques.
Julien likes to read historical books.
In this context, "julienne" is a noun referring to a culinary technique in which vegetables are cut into thin strips.
Coupez les légumes en julienne pour la recette.
Cut the vegetables into julienne for the recipe.
Here, "julien" functions as an adjective, relating to or characteristic of something named Julian, possibly a historical or stylistic reference.