Did you know?

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

druse - 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.

  1. From our crowdsourced Open Dictionary
    used in geology: a rock cavity lined with a crust of projecting crystals

    the crust of crystals lining a druse

    Submitted by Ruma from Bangladesh on 29/04/2013
  2. From our crowdsourced Open Dictionary
    in botany: a rounded cluster of calcium oxalate crystals found in some plant cellsSubmitted by Ruma from Bangladesh on 29/04/2013

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

BuzzWord Article

Open Dictionary


an electric skateboard

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