Macmillan Dictionary

Did you know?

Click any word in a definition or example to find the entry for that word

fool

 - definition
 
 
Close

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

more
noun American English pronunciation: fool /ful/ 
Word Forms
Close
singularfool
pluralfools
Other entries for this word
  1. 1
    [countable] someone who does not behave in an intelligent or sensible way

    You're a fool if you think you'll ever see that money again.

    feel (like) a fool:

    He made me feel like such a fool when he used me as an example!

    look (like) a fool:

    I'm not wearing that; I don't want to look like a fool.

    Thesaurus entry for this meaning of fool
    See also  April fool

phrases

This is the American English definition of fool. View British English definition of fool.

Change your default dictionary and thesaurus to British English.

 

charticle

a news article that consists of a chart … and only has a small amount of text

BuzzWord Article

Word of the Day

neutron

the part of the nucleus of an atom that has no electrical charge

Open Dictionary

never event

an event that should never occur in a healthcare setting …

add a word

Blog

A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog