Antibiotic vs Drug
When to use each in English, with meaning, register, and examples.
Antibiotic
Top 2,000 (common)
Drug
Top 1,000 (very common)A2noun
Most common: Drug
| Antibiotic | Drug | |
|---|---|---|
| Pronunciation | 🇬🇧 //ˌæntɪbaɪˈɒtɪk//🇺🇸 //ˌæntɪbaɪˈɑːtɪk// | 🇬🇧 /["/drʌɡ/"]/🇺🇸 /["/drʌɡ/"]/ |
| Meaning | A medicine that kills bacteria or stops their growth. | A substance that can change how the body or mind works. |
| Example | The doctor prescribed an antibiotic for my infection. | The doctor prescribed a new drug to help with the patient’s condition. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | - | A2 |
| Part of speech | noun | |
| Collocations | prescribed antibiotic, take antibiotics, antibiotic resistance, broad-spectrum antibiotic | 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 |
| Antonyms | - | medicine, cure |
| Common mistakes | Confused with 'antiviral', which treats viruses., Using 'antibiotic' inappropriately for viral infections., Mispronouncing the term, especially in a medical context. | 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. |
| Usage notes | Used in medical contexts. Appropriate for discussions on health, but avoid casual settings. Refers specifically to bacterial infections, not viral ones. | 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. |
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Frequently asked questions: Antibiotic vs Drug
What's the difference between Antibiotic and Drug?
Antibiotic: A medicine that kills bacteria or stops their growth. Drug: A substance that can change how the body or mind works.
Which is more common: Antibiotic and Drug?
Drug is the most common in everyday English.
Can you show an example of each?
Antibiotic: The doctor prescribed an antibiotic for my infection. Drug: The doctor prescribed a new drug to help with the patient’s condition.
Can I use Antibiotic and Drug interchangeably?
Not always. Antibiotic and Drug 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.