Definition of Effect
Quick Meaning of Effect
What happens as a result of something; the change or result that an action or event causes.
Detailed Definition of Effect
A change or result that is produced because of something else; a consequence.
How to Pronounce Effect
Stress pattern: oO (2-syllable word).
Tip: Stress the second syllable: ef-FECT. Different from 'affect' which is pronounced uh-FECT.
Watch out: Often confused with 'affect' (/əˈfɛkt/); 'effect' has primary stress on second syllable.
Origin and Etymology of Effect
From Old French 'effect', from Latin 'effectus' (accomplishment), derived from 'efficere' (to bring about).
How to Use Effect in a Sentence
Each example shows “effect” with a CEFR level so learners can pick examples that match their fluency.
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“The new law had a positive effect on the economy.”
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“Smoking has harmful effects on your health.”
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“We did not see the full effect of the medicine until a week later.”
Synonyms and Antonyms of Effect
Common Synonyms for Effect
Smart Synonyms for Effect — When to Use Each
- result
- when describing what comes from an action or
- impact
- when emphasizing significant influence or change
Antonyms of Effect
Common Collocations with Effect
These phrases pair with “effect” in everyday English:
- have an effect
- side effect
- no effect
- take effect
- long-term effect
Common Mistakes When Using Effect
Even fluent speakers slip up with “effect”. Here’s how to avoid the most common errors:
- ✗ Wrong: The medicine didn't have much affect on his pain.
- ✓ Correct: The medicine didn't have much effect on his pain.
- Why: 'Effect' (noun) means result. 'Affect' (verb) means to influence something.
- ✗ Wrong: The new policy will effect many workers negatively.
- ✓ Correct: The new policy will affect many workers negatively.
- Why: 'Affect' (verb) = to influence. 'Effect' (noun) = result. This sentence needs the verb 'affect'.
Words Confused With Effect
- Effect vs Affect: Similar pronunciation but 'affect' is a verb (to influence) and 'effect' is a noun (result) Compare →
Other Forms of Effect
- Noun: effect
- Verb: effect
- Adjective: effective
- Adverb: effectively
Frequently Asked Questions About Effect
What is the meaning of "Effect"?
What happens as a result of something; the change or result that an action or event causes.
How do you pronounce "Effect"?
The IPA is /ɪˈfɛkt/. Stress the second syllable: ef-FECT. Different from 'affect' which is pronounced uh-FECT.
What part of speech is "Effect"?
"Effect" is a noun at B1 level (Common European Framework).
What are synonyms for "Effect"?
Common synonyms include result, consequence, outcome.
How do you use "Effect" in a sentence?
For example: "The new law had a positive effect on the economy."