Me TOO!!! I am ASTOUNDED that so many people do not know what a tablespoon is.
It is an actual
unit of measure in cooking & baking. Larger than a teaspoon, but not serving spoon size. Doesn't matter if it is round like a soup spoon or oval like a "normal" tablespoon. Have you ever seen a recipe say, "add 3 servings spoons of butter to a recipe"???
I used to do catering and a
serving spoon is what the waiters use at buffet tables to scoop out and serve a whole
portion of food to one person. One serving spoon size of mashed potatoes would be about 6 teaspoons full. A serving spoon is also the size one uses to serve salad. When you Google "serving spoon" they look like this:
Also: Oval serving spoon on left, tablespoon on right:
Yes, we use those too, for fancy catering jobs. This is a diagram of a formal dinner place setting where the dessert spoon is is typically laid out at the top
above the dinner plate. It also has the two different spoon sizes: teaspoon and
oval soup spoon.
I have never seen a round soup spoon used at any of the various catering companies or events I've been to. The exception might be if the soup has clams still in the shell and the round soup spoon is easier to scoop up the whole shell as it is the same roundness.