Definition: The term "centrer" is a Latin word which means to center or arrange. It is often used in mathematics, physics, and other disciplines where it refers to arranging objects or elements in a particular way that makes them easier to understand or work with. For example, if you want to arrange the numbers 1, 2, 3, 4, 5 into rows of five, you might use a centrer like this: ``` 1 / \ 2