The Sun and planets are called the solar system because the word "solar" comes from the Latin word "Sol," which means "Sun."

Here's a breakdown:

* Sun: The Sun is the star at the center of our solar system. It's the largest and most massive object in our system, and its gravity holds everything else in orbit.

* Solar: The word "solar" is directly related to the Sun, indicating that the system revolves around it.

* System: This term signifies a group of objects that are interconnected and bound together by a common force, in this case, the Sun's gravity.

Therefore, the term "solar system" accurately describes the Sun and its orbiting planets, asteroids, comets, and other celestial bodies as a single entity, with the Sun at its core.