Cách sử dụng
The word "rex" is Latin and means "king". It is often used as a title, such as in the phrase "Tyrannosaurus rex" which means "Tyrant Lizard King", or in the name of a dog breed, "German Shepherd Dog (Alsatian) Rex". It can also be used as a name, for example Rex Tillerson or Rex Harrison. However, in everyday English, the word "rex" is not commonly used and most people would not know what it means.