What is the meaning of the Latin word 'avis'?

The Latin word 'avis' translates to 'bird' in English. This term is used in various contexts within Latin literature and scientific nomenclature, particularly in the classification of animals. The root of the word can be found in various related terms in languages derived from Latin, such as 'avian' in English, which pertains to birds. Understanding this vocabulary is essential not only in the study of Latin but also in fields like biology and ecology, where Latin terms are often employed to categorize animal species. This association solidifies why 'C. Bird' is the correct answer.