Did you know?

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

surgery - 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 surgery pronunciation in British English /ˈsɜː(r)dʒəri/
Word Forms
  • Facebook
  • Twitter
  1. 1
    [countable/uncountable] medical treatment in which a doctor cuts open someone’s body

    He had to undergo heart bypass surgery.

    1. a.
      [uncountable] a room in a hospital where doctors do surgery

      Take him up to surgery.

      Doctor Corday will be in surgery all morning.

  2. 2
    [countable] British a place where people can visit a doctor or a dentist. The American word is office.
    1. a.
      [uncountable] the period of time each day when people can visit a doctor or a dentist

      Surgery is from 9.00 to 4.30.

  3. 3
    [countable] British a period of time when people can visit their member of parliament (=elected political representative) to discuss problems


to fall over forwards so that your face hits the ground or another surface

BuzzWord Article

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