Define new multilevel list vs Define new list style

What's the difference between two items in paragraph menu section of Word 2010: "Define new multilevel list" and "Define new list style"? Are these items in the same correlation as direct formatting and styles?

Solution 1:

In short, one is to create while the other is to modify. Here is Microsoft's definition of the two functions;

What is the difference between the Define New Multilevel List and Define New List Style commands? The Define New Multilevel List command is convenient for creating and saving a list style that you won't ever change or that you will use in a single document. You can use the Define New List Style command to change the style design you created. If you use the Define New List Style command to define a new list style and then you make changes to the style, every instance of that list style is updated in the document.

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