What does it mean when soup is french served?

"French service" when referring to soup doesn't have a specific meaning. It's not a standard culinary term.

Perhaps you're thinking of these terms related to serving soup:

* French Onion Soup: This is a specific soup recipe, not a serving style.

* French Style: This could refer to a specific type of soup, perhaps one made with French ingredients or following French cooking traditions.

* Formal Service: In formal dining, soup is often served in individual bowls, and guests might be offered additional servings from a tureen.

If you have a specific context in mind where you encountered this phrase, please provide it, and I can help you understand its meaning better.