Based on what you know about the root poly, the word polyglot refers to something that has many languages.
A polyglot is an individual who speaks many languages. People from Europe often speak many languages due to the proximity of their countries. For instance, it is common to find a Hungarian that speaks its native language, but also Rumanian, German, French, Italian, English, and Spanish. Many touristic guides in Europe are polyglots because they have to attend people from many parts of the world.
