The term "narcotics addict" generally refers to an individual who is addicted to drugs that can cause a certain level of dependence or addiction. However, there are several synonyms for the term that can be used interchangeably depending on the context. For instance, the term "drug addict" can be used to describe someone who is addicted to different types of drugs, while "substance abuser" can be used to describe both drug and alcohol addiction. Other synonyms for "narcotics addict" include "junkie," "drug user," "addict," "habitual user," among others. It is important to note that the use of these synonyms should be done with sensitivity towards those struggling with addiction.