Did you know?

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

muck - definition and synonyms

Close

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.

Close

Thesaurus

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.

more
verb muck pronunciation in American English /mʌk/
Word Forms
Close
present tense
I/you/we/theymuck
he/she/itmucks
present participlemucking
past tensemucked
past participlemucked
  • Facebook
  • Twitter

phrasal verbs

muck out

[intransitive/transitive]
Word Forms
Close
present tense
I/you/we/theymuck out
he/she/itmucks out
present participlemucking out
past tensemucked out
past participlemucked out
to clean a place or building where farm animals live
It was always my job to muck out the barn.

muck up

Word Forms
Close
present tense
I/you/we/theymuck up
he/she/itmucks up
present participlemucking up
past tensemucked up
past participlemucked up
informal
  1. 1
    [intransitive/transitive] to not deal with something well or skillfully so that you do not achieve what you intended
    I couldn’t take the risk of mucking up my chances.
  2. 3
    [transitive] to make something dirty or messy
    Don’t muck up the clean floor.

nanodegree

a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

BuzzWord Article

Word of the Day

dolt

a stupid person

Open Dictionary

hypocaust

an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

add a word

Blog

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