Did you know?

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

boot - 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] boot pronunciation in British English /buːt/
Word Forms
  • Facebook
  • Twitter
  1. 1
    a type of shoe that covers all of your foot and part of your leg. You often wear boots to protect your feet and legs, for example from snow or rain
    walking/hiking/riding/ski boots:

    a new pair of ski boots

    ankle/knee/thigh boots:

    She wore black leather ankle boots.

  2. 2
    British the covered space at the back of a car, used for carrying things in. The American word is trunk.
  3. From our crowdsourced Open Dictionary
    boots on the ground a situation in which a country's armed forces are physically present in an area of conflict, as opposed to attacking from the air or surveying the situation remotely

    To do the job properly, our politicians are going to have to get over their hang ups about boots on the ground and face up to the reality of the threat we are facing.

    Submitted from United Kingdom on 20/08/2014

Open Dictionary


the activity of exploring abandoned buildings and other manmade structures

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