Earth dweller is a term used to describe someone who lives on the planet Earth. However, there are several synonyms for the word "earth dweller" that can be used interchangeably in different contexts. For instance, the term "terrestrial" means belonging to or relating to the Earth or its inhabitants. It is commonly used to describe living organisms that inhabit the Earth's soil, water, and air. Other synonyms for earth dweller include "earthling," "inhabitant," and "resident." These words can be used in both formal and informal contexts to describe people who live on Earth, emphasizing their connection to the planet and its environment.