Cool MateDrug vs Substance
When to use each in English, with meaning, register, and examples.
Drug
Substance
| Drug | Substance | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/drʌɡ/"]/🇺🇸 /["/drʌɡ/"]/ | 🇬🇧 /["/ˈsʌbstəns/"]/🇺🇸 /["/ˈsʌbstəns/"]/ |
| Meaning | A substance that can change how the body or mind works. | A material or matter that has weight and takes up space. |
| Example | The doctor prescribed a new drug to help with the patient’s condition. | The primary substance in the recipe is flour. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | A2 | B1 |
| Part of speech | noun | noun |
| Collocations | illegal, 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 for | addictive, cancer-causing, carcinogenic, use, abuse, contain, use, abuse, real, added, have, add, give something, in substance, of substance, with substance, real, added, have, add, give something, in substance, of substance, with substance, real, added, have, add, give something, in substance, of substance, with substance |
| Antonyms | medicine, cure | absence, lack |
| Common mistakes | Confused 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 'substantial', which refers to importance or size., Omitting 'of' when using 'substance' in phrases., Using 'substance' to describe abstract ideas without qualifiers. |
| Usage notes | Used 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. | Used in both scientific and everyday contexts to refer to physical materials or essential qualities. It’s not typically used in very informal speech. |
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Frequently asked questions: Drug vs Substance
What's the difference between Drug and Substance?
Drug: A substance that can change how the body or mind works. Substance: A material or matter that has weight and takes up space.
Which is more common: Drug and Substance?
Drug is the most common in everyday English.
Which is more advanced: Drug and Substance?
Substance is the highest level, at B1, on the CEFR scale.
Are Drug and Substance the same CEFR level?
Drug: A2, Substance: B1 on the CEFR scale.
What part of speech are Drug and Substance?
Drug: noun, Substance: noun.
Can you show an example of each?
Drug: The doctor prescribed a new drug to help with the patient’s condition. Substance: The primary substance in the recipe is flour.
Can I use Drug and Substance interchangeably?
Not always. Drug and Substance 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.