Commonly confused words
affect vs effect
Meaning, pronunciation, and examples
Affect is usually a verb meaning “to influence.” Effect is usually a noun meaning “a result.” Their first vowels can sound very similar in natural speech.
Reference accent
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American English
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Each word has natural, careful, and slow playback. Try listening without looking, then compare the mouth cues.
Word 1
affect
verb, usually
To influence or cause a change in someone or something.
US pronunciation
/əˈfekt/
UK IPA
/əˈfekt/
Hear three samples
How to pronounce it
Keep the first syllable quick and unstressed, then land firmly on FEKT.
Word 2
effect
noun, usually
A result or change produced by an action or cause.
US pronunciation
/ɪˈfekt/
UK IPA
/ɪˈfekt/
Hear three samples
How to pronounce it
Use a short “ih” before the stressed FEKT; in fast speech it may reduce toward “uh.”
Sound contrast
How to tell them apart
Both words stress FEKT. Start affect with a relaxed “uh” and effect with a short “ih,” but do not force the contrast: many speakers reduce both unstressed vowels, so grammar and context carry much of the difference.
Meaning and usage
What is the difference between affect and effect?
Use affect when something changes or influences something else. Use effect for the result that follows. There are less common exceptions—affect can name an observable emotional expression, and effect can mean “to bring about”—but the verb-versus-noun rule covers most everyday sentences.
Listen in context
Six example sentences
Context makes both the meaning and the natural rhythm easier to hear. Every sentence has its own playback.
Examples with
affect
- Heavy rain can affect the evening commute.
- A lack of sleep affects my concentration.
- The new schedule will affect every team.
Examples with
effect
- The medicine had a calming effect.
- We studied the effects of sleep on memory.
- The new rule takes effect on Monday.
Try it yourself
Find the words your listener may hear differently
These sounds can overlap in natural speech, so a transcript cannot prove that one pronunciation is right or wrong. Use it as one clue alongside context.