This meaning refers to the illegal act of distributing or selling drugs. It is commonly used to describe the activities of individuals or organizations involved in the drug trade.

This meaning encompasses the broader spectrum of commercially dealing with illegal drugs, including manufacturing and distributing various types of narcotics.

This meaning specifically relates to the commercial aspect of trading opium, a type of narcotic derived from poppies, which has a historical significance and is often tied to various cultural and economic issues.