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fasten up - definition and synonyms


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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

Open Dictionary


a rise in the level of a stream or river

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