It's often used in scientific and technical terms, such as:
* Macromolecule: A very large molecule, typically consisting of many repeating subunits.
* Macroeconomics: The study of the economy as a whole, focusing on broad factors like inflation, unemployment, and economic growth.
* Macroscopic: Relating to objects or phenomena that are large enough to be visible to the naked eye.
* Macrocosm: The entire universe, as opposed to a smaller part or a microcosm.
So, when you see "makros" in a word, it usually indicates something big or extensive.