/nɑːˈkɒtɪkˈ/ – Noun
Definition: 1. thuốc ngủ, thuốc gây mê,;
2. ma túy;
3. người nghiện thuốc gây mê, người nghiện ma túy.
A more thorough explanation: A narcotic is a drug that affects the central nervous system and has a tendency to cause addiction or habituation. It is often used for pain relief or as a sedative.
Example: The possession and distribution of narcotic substances are strictly prohibited by law.