Aerobically refers to a type of exercise that stimulates the cardiovascular system and increases lung capacity. The word aerobic can be replaced with synonyms like cardiovascularly, oxygenationally, and endurance-wise. Other synonyms include briskly, energetically, and vigorously. Movement-based synonyms include fitness-wise, gym-toned, and fitness fanatically, among others. Jogging, cycling, and swimming are all examples of physical activities done aerobically. However, if the word 'aerobically' is not fitting, people can interchange it with words like dynamically or actively. The crucial aspect of doing aerobic exercises is the increase of oxygen and energy-transferring molecules known as ATP.