Diacetylmorphines, also known as heroin, is a highly addictive opioid drug that is derived from the opium poppy plant. Due to its harmful effects, it is illegal and widely abused across the globe. However, there are many synonyms used for diacetylmorphines, such as "smack," "dope," "junk," "H," and "scag." These street names are popular among users and dealers who use them to avoid law enforcement or detection by society. Knowing these synonyms is essential for parents, educators, and healthcare professionals to identify illicit drug use and prevent addiction. In conclusion, diacetylmorphines and its associated synonyms have no place in society and must be eradicated.