Sound-alikes

Affect vs Effect

What is the difference between affect and effect?

Use affect as a verb (to change something) and effect as a noun (the result).

Affect vs Effect at a glance

  • affect

    /əˈfekt/ · verb

    To change or influence something.

    • Lack of sleep can affect your mood.
    • The strike will affect thousands of passengers.
    “affect” in the vocabulary guide
  • effect

    /ɪˈfekt/ · noun

    A result or change caused by something.

    • The new rules had a big effect on small businesses.
    • Coffee doesn't have much effect on me.
    “effect” in the vocabulary guide

How to remember it

Think RAVEN: Remember, Affect is a Verb, Effect is a Noun.

Good to know

Effect can also be a formal verb meaning "to make something happen": to effect change. Affect as a noun is a technical word in psychology.

Common mistakes

  • Wrong: The weather really effects my mood.

    Right: The weather really affects my mood.

  • Wrong: The medicine had no affect.

    Right: The medicine had no effect.

  • Wrong: How will this affect on the price?

    Right: How will this affect the price?

Quick quiz

  1. 1.Music can the way we feel.

  2. 2.The film's special were amazing.

  3. 3.Did the news your plans?

Pick the right word for each gap.