1. Thread: This is the more common meaning. It refers to a thread or yarn. You see this in words like "mitosis," the process of cell division where the chromosomes are separated like threads.
2. Story, tale, myth: This meaning is less common, but it's also used, particularly in words like "mythology," which refers to the study of myths.
So, when encountering the root "mitos," you need to consider the context to determine the specific meaning.