Did you know?

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

slow - 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.

verb [intransitive/transitive]     slow pronunciation in American English
Word Forms
present tense
present participleslowing
past tenseslowed
past participleslowed
  1. 1
    if you slow something, or if it slows, you reduce the level or amount of it

    Several factors combined to slow consumer spending last month.

  2. 2



    slow down

    if you slow something, or if it slows, you reduce the speed at which it happens

    Drugs can slow the progress of the disease.

    Synonyms and related words
    1. a.
      if you slow someone or something, or if they slow, you reduce the speed at which they move

      An accident is slowing traffic on the Santa Monica freeway.

      I ran for a while and then slowed to a walk.

      slow to a crawl/halt:

      Heavy fog forced drivers to slow to a crawl.

      Synonyms and related words

phrasal verbs

quiz invitation


a description of an economic or political situation based on analysis of information at the present time

BuzzWord Article

Open Dictionary


an unregulated form of capitalism that features financial deregulation, privatisation and low tax for high earners

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