What Are the Primary Types of Queries in OLAP?

There are two or three primary types of queries in OLAP known as roll up, drill down and slicing. For example, I've always thought it's drill down as narrowing down your data. The dice term generally refers to having more than one dimension. So if you want to know how much revenue was generated in the city of San Francisco, where the users also mail, that's an example of incorporating just two dimensions but still filtering down your view of the data.