Did you know?

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

egomaniac - 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.



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.

noun [countable] showing disapproval egomaniac pronunciation in British English /ˌiːɡəʊˈmeɪniæk/
Word Forms
  1. someone who behaves in an unreasonable or crazy way because they think that they and their ideas are extremely important
    Synonyms and related words

Open Dictionary


another way of saying congratulations, or that something/someone looks nice or fascinating

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