Did you know?

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

classify - 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.

verb [transitive] classify pronunciation in British English /ˈklæsɪfaɪ/
Word Forms
present tense
present participleclassifying
past tenseclassified
past participleclassified
  • Facebook
  • Twitter
  1. 1
    to put people or things into particular groups according to the features that they have
    classify someone/something according to something:

    In the study families are classified according to their incomes.

    classify someone/something into something:

    The specimens were then classified into four groups.

    1. a.
      to decide which group someone or something belongs to, according to the particular features they have
      classify something as something:

      These cows are now classified as a rare breed.



used to describe something which is done more carefully and over a longer period of time …

BuzzWord Article

Open Dictionary


the practice of giving birth in the presence of several friends and relatives

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