Did you know?

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


 - definition

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 entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

noun [uncountable] British English pronunciation: security /sɪˈkjʊərəti/
  1. 1
    safety from attack, harm, or damage

    Every precaution has been taken to ensure the personal security of the delegates.

    internal security:

    The information received is highly confidential and relates to internal security.

    tight/lax security (=good/bad security):

    The meeting took place amid extremely tight security.

    1. a.
      [only before noun] connected with safety and protection

      security measures/arrangements/operations

      the Prime Minister's security advisers

    See also  national security
  2. 2
    a feeling of confidence and safety, or a situation in which you can feel confident and safe

    It gave her the security of knowing there was someone she could talk to.

    a sense/feeling of security:

    A predictable routine gives children a sense of security.

    1. a.
      the degree to which you can feel confident and safe
      financial/job security:

      She was concerned about her financial security.

  3. 3
    business property or goods that you agree to give to someone who has lent you money if you cannot pay the money back

    Additional security for any loan may be required by the bank.

food rave

a very large party where people eat, sell or share many different types of food, usually held outside or in a large public building

BuzzWord Article

Word of the Day


threadbare clothing, carpet, or cloth is very thin and almost has holes in it because it has been...

Open Dictionary

dead white (European) male

a man … whose achievements may have been overestimated because he belonged to the gender and ethnic group … that was dominant at the time

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