What does saurus as in tyranaSAURUS stand for?

The suffix "saurus" comes from the Greek Word "sauros," meaning "lizard" or "reptile." In the case of "Tyrannosaurus," it translates to "tyrant lizard," which reflects the dinosaur's large size and predatory nature. This naming convention is common in Paleontology, where many dinosaur names incorporate "saurus" to indicate they are part of the reptilian group.