Cool MateAffect vs Influence
When to use each in English, with meaning, register, and examples.
Affect
Top 2,000 (common)A2verb
Influence
Top 1,000 (very common)B1noun
Most common: Influence
| Affect | Influence | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/əˈfekt/","/əˈfekts/","/əˈfektɪd/","/əˈfektɪŋ/"]/🇺🇸 /["/əˈfekt/","/əˈfekts/","/əˈfektɪd/","/əˈfektɪŋ/"]/ | 🇬🇧 /["/ˈɪnfluəns/"]/🇺🇸 /["/ˈɪnfluəns/"]/ |
| Meaning | to change or influence something | To have an effect on someone or something. |
| Example | The weather can greatly affect our mood. | Her influence on the committee was undeniable, as she often swayed their decisions. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) |
| CEFR level | A2 | B1 |
| Part of speech | verb | noun |
| Collocations | dramatically, greatly, materially, be likely to, deeply, profoundly | big, considerable, enormous, have, gain, give somebody, extend, grow, wane, under the influence, influence from, influence in, a sphere of influence, bring your influence to bear on somebody/something, under the influence, big, considerable, enormous, have, gain, give somebody, extend, grow, wane, under the influence, influence from, influence in, a sphere of influence, bring your influence to bear on somebody/something, under the influence, big, considerable, great, be, have, be exposed to, be at work, affect something, shape something, influence on |
| Antonyms | preserve, remain, maintain | disregard, ignore, neglect |
| Common mistakes | Confused with 'affect' vs 'effect', 'Affect' used as a noun instead of a verb, Using 'affect' with an incorrect subject | Used as a noun instead of a verb without context., Confused with 'affect' versus 'effect'., Omitting the object when using it in sentences. |
| Usage notes | Use 'affect' to describe how one thing changes another. It is not interchangeable with 'effect', which is a result. Avoid using 'affect' as a noun. | Used in both formal and informal contexts to describe how one person or thing affects another. Be cautious not to confuse it with 'affect' which is more emotion-based. |
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Frequently asked questions: Affect vs Influence
What's the difference between Affect and Influence?
Affect: to change or influence something Influence: To have an effect on someone or something.
Which is more common: Affect and Influence?
Influence is the most common in everyday English.
Which is more advanced: Affect and Influence?
Influence is the highest level, at B1, on the CEFR scale.
Are Affect and Influence the same CEFR level?
Affect: A2, Influence: B1 on the CEFR scale.
What part of speech are Affect and Influence?
Affect: verb, Influence: noun.
Can you show an example of each?
Affect: The weather can greatly affect our mood. Influence: Her influence on the committee was undeniable, as she often swayed their decisions.
Can I use Affect and Influence interchangeably?
Not always. Affect and Influence 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.