Did you know?

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

uncle - 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]     uncle pronunciation in British English
Word Forms
  1. the brother of one of your parents, or the husband of your aunt. You are his niece or nephew

    The business was owned by my uncle.

    a letter from Uncle Richard

    1. a.
      used by children in front of the name of a man who is a close friend of their parents

      How long have you known Uncle Phil and Auntie Carol?

      Synonyms and related words


to manipulate someone psychologically so that they begin to question their own perceptions and memories

BuzzWord Article

Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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