a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body, a substance taken for its narcotic or stimulant effects, often illegally

drug of choice, drug on the market, drug trafficking

drug abuse, drug addiction, drug overdose

Formal and Informal Expressions of drug

In different contexts, you can replace 'drug' with suitable alternatives. In a more formal setting, 'medication, pharmaceutical' is apt. In informal speech or writing, 'substance, stuff' is a commonplace synonym.

drug: Explore its Definition & Usage

drug Definition

1a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body
2a substance taken for its narcotic or stimulant effects, often illegally

Using drug: Examples

Take a moment to familiarize yourself with how "drug" can be used in various situations through the following examples!

Example
I need to take my prescription drugs every day.
Example
He was arrested for possession of illegal drugs.
Example
She became addicted to drugs after her surgery.

drug Synonyms and Antonyms

Synonyms for drug

Idioms Using drug

drug of choice
a drug that a person prefers to use or is most commonly used by a particular group
Example
Marijuana is often the drug of choice for college students.
drug on the market
a new drug that has been approved for sale and distribution
Example
The pharmaceutical company just released their latest drug on the market.
drug trafficking
the illegal trade of drugs, typically involving large quantities of narcotics
Example
Drug trafficking is a serious problem that affects many countries around the world.

Phrases with drug

drug abuse
the habitual taking of addictive or illegal drugs
Example
Drug abuse can lead to serious health problems and addiction.
drug addiction
a chronic disease characterized by drug seeking and use that is compulsive or difficult to control, despite harmful consequences
Example
Drug addiction can have devastating effects on a person's life and relationships.
drug overdose
an excessive and dangerous dose of a drug that can result in serious harm or death
Example
Drug overdoses are a leading cause of accidental deaths in many countries.

Origins of drug

from Middle English 'drogge', meaning 'medicine'

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Summary: drug in Brief

The term 'drug' [drʌɡ] refers to a substance that has a physiological effect when ingested or introduced into the body. It can be a medicine or an illegal narcotic or stimulant, as in 'He was arrested for possession of illegal drugs.' 'Drug' extends into phrases like 'drug abuse,' and idioms like 'drug of choice,' denoting a preferred drug, and 'drug trafficking,' referring to the illegal trade of drugs.