"POSS CONTR SUB" is an abbreviation commonly used in legal contexts and stands for "Possession of Controlled Substances". Synonyms for this term can help broaden our understanding of the topic. Some alternative terms that can be used to convey the same meaning include "Illegal Drug Possession", "Controlled Substance Possession", or simply "Drug Possession". These synonyms allow for a more encompassing approach when discussing the possession of illicit substances, highlighting the legal implications involved. It is important to note that the use of these synonyms does not change the severity of the offense, but rather provides a more diverse vocabulary to address this specific legal matter.