A substance used as a medication or in the preparation of medication.
The doctor prescribed a new drug to help manage her symptoms.
A substance that has a physiological effect when ingested or otherwise introduced into the body, especially one that is illegal or used recreationally.
He was arrested for possession of illegal drugs.
Something that produces a strong, often addictive attraction or pleasure when experienced; a figurative source of dependency.
For many people, social media has become a drug they cannot live without.
drugverb
To administer a drug to someone, especially to induce stupor or insensibility.
The doctor had to drug the patient before the surgery to ensure they felt no pain.
To add a drug to food or drink, often secretly, to affect someone’s behavior or consciousness.
The villain planned to drug the hero's drink to incapacitate him.
drugadjective
Relating to or involved with drugs.
The government intensified its fight against drug trafficking.