Did you know?

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

fasten up - 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.

phrasal verb [transitive]
Word Forms
present tense
I/you/we/theyfasten up
he/she/itfastens up
present participlefastening up
past tensefastened up
past participlefastened up

Related words

  1. same as fasten (sense 1)

    It’s getting cold out, so fasten up your coat.

See also main entry: fasten
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