Drug vs Narcotic

When to use each in English, with meaning, register, and examples.

Drug

Top 1,000 (very common)A2noun

Narcotic

FormalBeyond 10,000 (less common)C2noun
Most formal: NarcoticMost common: Drug
 DrugNarcotic
Pronunciation🇬🇧 /["/drʌɡ/"]/🇺🇸 /["/drʌɡ/"]/🇬🇧 //nɑːˈkɒtɪk//🇺🇸 //nɑrˈkɑtɪk//
MeaningA substance that can change how the body or mind works.A strong drug that can make you feel relaxed or sleepy.
ExampleThe doctor prescribed a new drug to help with the patient’s condition.The doctor prescribed a narcotic for the patient's intense pain.
RegisterNeutralFormal
How commonTop 1,000 (very common)Beyond 10,000 (less common)
CEFR levelA2C2
Part of speechnounnoun
Collocationsillegal, illicit, addictive, inject, baron, kingpin, lord, drink and drugs, drugs and alcohol, powerful, strong, effective, course, dose, be on, take, prescribe (somebody), cure something, help something, treat something, company, prices, drug against, drug fornarcotic pain reliever, narcotic substance, narcotic addiction, narcotic overdose
Antonymsmedicine, curestimulant, energizer
Common mistakesConfused with 'medication' - 'drug' can refer to illegal substances., Using the word casually around sensitive topics, which might offend., Assuming 'drug' only means illegal substances.Confused with 'hallucinogen' - they are different types of drugs., Misused in contexts outside medicine or law., Assuming all narcotics are illegal.
Usage notesUsed in both medical and recreational contexts. Be careful with informal usage; it can sound negative or carry stigma. In formal contexts, it often refers to prescribed medications.Often used in legal and medical contexts. May sound overly formal or technical in casual conversations.

Frequently asked questions: Drug vs Narcotic

What's the difference between Drug and Narcotic?

Drug: A substance that can change how the body or mind works. Narcotic: A strong drug that can make you feel relaxed or sleepy.

Which is more formal: Drug and Narcotic?

Narcotic is the most formal of these.

Which is more common: Drug and Narcotic?

Drug is the most common in everyday English.

Which is more advanced: Drug and Narcotic?

Narcotic is the highest level, at C2, on the CEFR scale.

Are Drug and Narcotic the same CEFR level?

Drug: A2, Narcotic: C2 on the CEFR scale.

What part of speech are Drug and Narcotic?

Drug: noun, Narcotic: noun.

Can you show an example of each?

Drug: The doctor prescribed a new drug to help with the patient’s condition. Narcotic: The doctor prescribed a narcotic for the patient's intense pain.

Can I use Drug and Narcotic interchangeably?

Not always. Drug and Narcotic are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons