There are various synonyms for the word "oxygens" which refer to the chemical substance composed of two oxygen atoms and represented by the symbol O2. Some of the common synonyms for oxygen include "air," "gas," "breath," and "life force." Additionally, oxygen can be referred to as "oxidizing agent," "activator," or "booster" because of its ability to help ignite and sustain combustion. In the field of science and medicine, oxygen is often referred to as "medical oxygen" or simply "O2." Regardless of the term used, oxygen is an essential component of the Earth's atmosphere and is necessary for the survival of most living organisms.