Did you know?

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

go crazy - definition and synonyms

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.

Thesaurus diagram

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

  1. 1
    to become very angry about something

    My parents will go crazy if they find out.

  2. 2
    to become bored, impatient, and upset

    If I work there much longer I’ll go crazy.

  3. 3
    if an audience or group of people go crazy, they become very excited

    He scored and the crowd went crazy.

    Synonyms and related words
See also main entry: crazy
quiz invitation

gig economy

an employment concept in which people are paid for each specific, short-term task that they do and don't have conventional contracts of employment

BuzzWord Article

Open Dictionary

fake news

a sensational piece of news which does not map to reality, created to attract attention or damage somebody's reputation

add a word


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
Macmillan learn live love play