Select the most appropriate one-word substitution for the given group of words. 

Living by eating anything 

Omnivorous

The most appropriate one-word substitution for "living by eating anything" is omnivorous.

• Cannibal means a person who eats the flesh of other human beings.
• Carnivorous means eating meat.
• Herbivorous means eating plants.

The word omnivorous comes from the Latin words "omnis," meaning "all," and "vorare," meaning "to devour." Omnivorous animals are those that eat both plants and animals. Omnivorous animals have a variety of different teeth and digestive systems that allow them to eat a wide variety of foods.