1. a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body
2. an illegal substance that people take to feel happy, relaxed, or excited

1. to give a harmful drug to someone without their knowledge
2. to give drugs to someone, especially to make them unconscious

Examples

• The doctor prescribed a new drug for her headaches.
• Many life-saving drugs are now available to treat cancer.
• Police arrested him for selling illegal drugs.
• Someone drugged his drink at the party.
• The veterinarian had to drug the wild animal before treating it.
• She takes several drugs daily to manage her diabetes.
• The new drug shows promise in clinical trials.