Effect vs Knock-on
When to use each in English, with meaning, register, and examples.
Effect
Top 1,000 (very common)A2noun
Knock-on
Top 3,000 (common)
Most common: Effect
| Effect | Knock-on | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ɪˈfekt/"]/🇺🇸 /["/ɪˈfekt/"]/ | 🇬🇧 //nɒk ɒn//🇺🇸 //nɑk ɑn// |
| Meaning | A change that is caused by something. | A result or effect from an action. |
| Example | The effect of the medicine was noticeable within hours. | The new law had a significant knock-on effect on the economy. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 3,000 (common) |
| CEFR level | A2 | - |
| Part of speech | noun | |
| Collocations | decisive, dramatic, far-reaching, bring about, exert, have, exist, occur, spread, in effect, to this effect, to that effect, cause and effect, to little effect, to no effect, special, cinematic, audio | knock-on effect, knock-on consequences, knock-on impact |
| Antonyms | cause, source | - |
| Common mistakes | Confused with 'affect' versus 'effect'., Using 'effect' as a verb instead of a noun., Confusing singular and plural forms (e.g., 'effects' vs 'effect'). | Using 'knock-on' without a noun afterwards., Confusing it with similar phrases like 'knock-off'. |
| Usage notes | Use 'effect' to refer to results or changes. It's more formal than 'result.' Avoid using it where 'affect' (to influence) fits better. | Often used in discussions about consequences or effects of actions. Suitable for both spoken and written contexts. |
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Frequently asked questions: Effect vs Knock-on
What's the difference between Effect and Knock-on?
Effect: A change that is caused by something. Knock-on: A result or effect from an action.
Which is more common: Effect and Knock-on?
Effect is the most common in everyday English.
Can you show an example of each?
Effect: The effect of the medicine was noticeable within hours. Knock-on: The new law had a significant knock-on effect on the economy.
Can I use Effect and Knock-on interchangeably?
Not always. Effect and Knock-on 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.