Did you know?

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

window - 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] window pronunciation in British English /ˈwɪndəʊ/
Word Forms
  • Facebook
  • Twitter
  1. 1
    a frame in a wall with glass in it that lets light and air into a room and lets you see what is outside
    She just stood there staring out of the window.
    Through the window he saw a figure coming up the path.
    She was watching him from an upstairs window.
    open/close a window: Do you mind if I open a window?
  2. 2
    computing one of the different work areas on a computer screen
    open/close a window: Click on the X to close the window.
  3. 4
    a period of time when you can do something
    I’ve got a window on Friday when I could see you.



a fashion trend in which people intentionally wear ordinary, inexpensive, widely-available clothing

BuzzWord Article

Open Dictionary


a flower or small bunch of flowers worn on the lapel of a jacket on special occasions

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