Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

effect

 
 
/ɪˈfekt/ noun

Definition

[C, U] a change, reaction, or result that is caused by something: The accident had a huge effect on her life. We don't know the long-term effects of this drug.
in effect used to say what the real situation is: This means, in effect, that the plan has been scrapped.
come/go into effect to start being used: New food safety rules come into effect on Monday.
take effect to start to produce results or changes: The anaesthetic takes effect in about ten minutes.
to that effect used to say that you are giving the general meaning of something but not the exact words: He said he was bored with school or something to that effect.
a sound/special/visual, etc effect a sound, image, etc that is created artificially → See also side effect
(Definition of effect noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Word of the Day

ride (out) the storm

to manage not to be destroyed, harmed or permanently affected by the difficult situation you...

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More