Testosterone enanthate is a popular anabolic steroid used for building muscle mass, improving strength and endurance. Some synonyms for the word testosterone enanthate include testosterone heptanoate, testosterone enantate, and testosterone 17β-heptanoate. These synonyms refer to the same compound, which is derived from natural testosterone but with a longer ester attached. The ester allows for a slower release of the testosterone into the body, making it a long-lasting steroid. Other similar compounds include testosterone cypionate, testosterone propionate, and sustanon, which also offer similar benefits. However, the use of such steroids is highly controversial and should only be administered under the guidance of a medical professional.