drug

• Noun

  1. A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.
  2. A psychoactive substance, especially one which is illegal and addictive, ingested for recreational use, such as cocaine.
  3. Anything, such as a substance, emotion, or action, to which one is addicted.
  4. Any commodity that lies on hand, or is not salable; an article of slow sale, or in no demand.
  5. (informal) Short for drugstore.

• Verb
• Verb