Ventilatory is an adjective that is used to describe the process of providing air or oxygen to someone or something. Some synonyms that can be used to replace it in a sentence include respiratory, pulmonary, breathing, oxygenating, and aerating. These words are often used in the contexts of medicine and biology, referring to the mechanisms and functions of the respiratory system. Other possible synonyms include airway, ventilation, and respiration. Using these words can help provide more varied and descriptive language when discussing topics revolving around breathing, air circulation, and oxygen consumption.