Did you know?

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

segment - 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.

Thesaurus diagram

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]     segment pronunciation in British English
Word Forms
Related words
  1. 1
    a separate part of anything

    Cut the dough into eight equal segments.

    segment of:

    The decision was very popular among certain segments of the population.

  2. 2
    a part of a fruit such as an orange or a grapefruit that can easily be separated into parts
    1. a.
      biology one of the parts of something such as a flower or an insect’s body that has clearly separate parts
  3. 3
    maths a part of a line or curve between any two points on it
    1. a.
      maths a part of a circle that is formed by a straight line going across it but not passing through the centre


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

BuzzWord Article

Open Dictionary


a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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