Did you know?

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

mouth breather - definition and synonyms

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.

noun mainly American very informal
  1. From our crowdsourced Open Dictionary
    a stupid person

    Sorry mouth-breather, but you failed to read what I wrote. Thanks for proving you can't comprehend simple things. It couldn't be any clearer.

    Submitted by Kerry on 18/03/2016
quiz invitation
BuzzWord

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

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
Macmillan learn live love play