Infect vs Spread
When to use each in English, with meaning, register, and examples.
Infect
Top 2,000 (common)C1verb
Spread
Top 1,000 (very common)B1verb
Most common: Spread
| Infect | Spread | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ɪnˈfekt/","/ɪnˈfekts/","/ɪnˈfektɪd/","/ɪnˈfektɪŋ/"]/🇺🇸 /["/ɪnˈfekt/","/ɪnˈfekts/","/ɪnˈfektɪd/","/ɪnˈfektɪŋ/"]/ | 🇬🇧 /["/spred/","/spredz/","/ˈspredɪŋ/"]/🇺🇸 /["/spred/","/spredz/","/ˈspredɪŋ/"]/ |
| Meaning | To make someone sick by spreading germs or diseases. | To open something wide or make it cover a large area. |
| Example | It is not possible to infect another person through kissing. | She decided to spread the butter evenly on her toast. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | C1 | B1 |
| Part of speech | verb | verb |
| Collocations | infect a wound, infect someone with a virus, infectious disease, infected by bacteria, infect the environment | fast, like wildfire, quickly, (all) across, among, around, be thinly spread, spread yourself too thin, fast, like wildfire, quickly, (all) across, among, around, be thinly spread, spread yourself too thin, fast, like wildfire, quickly, (all) across, among, around, be thinly spread, spread yourself too thin, thickly, lightly, thinly, on, with, carefully, out, across, on, over, spread something open, spread your arms, legs, etc. out wide, spread your arms, legs, etc. wide, carefully, out, across, on, over, spread something open, spread your arms, legs, etc. out wide, spread your arms, legs, etc. wide, carefully, out, across, on, over, spread something open, spread your arms, legs, etc. out wide, spread your arms, legs, etc. wide, equally, evenly, uniformly, try to, among, between, over |
| Antonyms | heal, cure, prevent | conceal, gather, compress |
| Common mistakes | Confused with 'affect' — 'infect' means to make sick, while 'affect' relates to influencing something., Using 'infect' with inanimate objects — only living things can be infected., Mixing up 'infect' with 'contaminate' — 'contaminate' often refers to pollution or toxins. | Confused with 'spred' as a past tense; the correct past is 'spread'., Misused with 'spreading out' when describing thoughts instead of physical spreading., Omitting the object; remember to include what is being spread. |
| Usage notes | Use 'infect' in medical or health contexts. It’s formal, so avoid it in casual conversations unless discussing illness. Common with diseases or viruses. | Use 'spread' when talking about applying something, like a sandwich spread or an idea. It's neutral and suitable for all contexts, but avoid using it too informally when discussing significant topics. |
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Frequently asked questions: Infect vs Spread
What's the difference between Infect and Spread?
Infect: To make someone sick by spreading germs or diseases. Spread: To open something wide or make it cover a large area.
Which is more common: Infect and Spread?
Spread is the most common in everyday English.
Which is more advanced: Infect and Spread?
Infect is the highest level, at C1, on the CEFR scale.
Are Infect and Spread the same CEFR level?
Infect: C1, Spread: B1 on the CEFR scale.
What part of speech are Infect and Spread?
Infect: verb, Spread: verb.
Can you show an example of each?
Infect: It is not possible to infect another person through kissing. Spread: She decided to spread the butter evenly on her toast.
Can I use Infect and Spread interchangeably?
Not always. Infect and Spread 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.