\ ˈmək How to pronounce muck (audio) \

Definition of muck

 (Entry 1 of 2)

1 : soft moist farmyard manure
2 : slimy dirt or filth
3a : defamatory remarks or writings
b : rubbish, nonsense mindless muck
4a(1) : dark highly organic soil
(2) : mire, mud
b : something resembling muck : gunk
5 : material removed in the process of excavating or mining


mucked; mucking; mucks

Definition of muck (Entry 2 of 2)

transitive verb

1a : to clean up especially : to clear of manure or filth usually used with out
b : to clear of muck
2 : to dress (something, such as soil) with muck
3 : to dirty with or as if with muck : soil

intransitive verb

1 : to move or load muck (as in a mine)
2a : to engage in aimless activity usually used with about or around
b : putter, tinker usually used with about or aroundmucking around with his computer
c : interfere, meddle usually used with about or around

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Other Words from muck


mucker noun

Synonyms & Antonyms for muck

Synonyms: Noun

Synonyms: Verb

Antonyms: Verb

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Examples of muck in a Sentence

Noun Clean that muck off your shoes. spattered with muck from the pigpen Verb you can't work in the garden and not expect to muck your clothes
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Recent Examples on the Web: Noun The challenge is how to conceptually divide up all of these different forms without getting completely lost in the muck. Francesca Cotrufo, The Conversation, "Soil carbon is a valuable resource, but all soil carbon is not created equal," 6 Feb. 2020 Meanwhile, the Red Team struggled in the muck and flipped just two into the dry zone. Mary Colurso |, al, "Alabama’s Micah Collum gets down and dirty on ‘Biggest Loser’," 5 Feb. 2020 Folding chairs, scooters and giant invasive snails are among the things that have been found in the muck at the bottom of a 3-mile stretch of the San Antonio River after it was drained for the first time in four years. Scott Huddleston,, "San Antonio River draining targets invasive snail, uncovers weird trash," 7 Jan. 2020 Specifically, Twitter is Dante’s fifth circle of hell, in which the wrathful fight endlessly in ships on the River Styx while the sullen gurgle in the muck until the world ends. Abby Ohlheiser, Washington Post, "We can’t impeach the Internet, so buckle up," 3 Oct. 2019 Beginning in the reign of Victoria, the British monarchy cast itself as a symbolic institution, above the muck of politics and scandal. Nr Editors, National Review, "The Week," 23 Jan. 2020 The robot had seemingly started and gotten stuck, its beeping and banging made the audible muck. Arkansas Online, "North Carolina couple call 911 on vacuum thought to be intruder," 27 Dec. 2019 Brown and black muck littered the floor of the bedroom, bathroom, TV room and kitchen — re-done two years ago — in the basement where his kids stay when home from college. Anna Bauman,, "‘That’s not dirt’: SF residents endure flooded homes as sewer pipes back up in storms," 9 Dec. 2019 The stagnation of Hartford’s grand list stands in the way of the city’s efforts to rise out of the muck of its budget woes. Rebecca Lurye,, "New city committee will look at how to grow Hartford’s grand list, easing burden on small businesses," 12 Dec. 2019 Recent Examples on the Web: Verb If Coleman, Ramey or Andrew Jones managed to penetrate, another Bear would slide in to muck it all up. Nick Moyle,, "Reeling and short-handed, Texas falls to No. 1 Baylor," 10 Feb. 2020 The scandal hiding in plain sight is our intelligence establishment’s misuse of its authority to muck around in the 2016 election. Holman W. Jenkins, WSJ, "The Comey Coverup Unravels," 17 Jan. 2020 The deep-textured G-10 handle doesn’t slip in the hand when bloody or wet, and the scales are bound to the tang with blind pins and industrial epoxy, so neither water nor blood can seep in and muck things up. The Editors, Field & Stream, "The Best Hunting and Fishing Gear of the Year," 26 Nov. 2019 But the presence of a massive third party—such as a black hole—can muck things up, sending them spiraling toward each other in just a million years. Charlie Wood, Popular Science, "There’s a bizarre group of shapeshifting objects at the center of the Milky Way," 16 Jan. 2020 Today’s daily digit A somewhat subjective rating of the day’s weather, on a scale of 0 to 10. 8/10: Mostly Sunny, dry, and noticeably milder--with no gusty winds to muck it all up--is a win in my book! Brian Jackson, Washington Post, "D.C.-area forecast: Milder today through Christmas, with dry weather and light winds," 22 Dec. 2019 While marrying relatives may helped the Habsburgs rise to power, the resulting mucked-up family tree eventually led, full circle, to their fall from the throne. Lila Thulin, Smithsonian, "The Distinctive ‘Habsburg Jaw’ Was Likely the Result of the Royal Family’s Inbreeding," 4 Dec. 2019 This mean-spirited rain is mucking with their hair. Robin Givhan, Washington Post, "Why would anyone want Dior coveralls? Never mind, just enjoy its garden-themed Paris runway show.," 25 Sep. 2019 Returning to a franchise some 30 years after its cultural zenith was going to be a tall order for any director—but J.J. Abrams went ahead and mucked with the lightsaber again. Darren Orf, Popular Mechanics, "A Brief History of Our Love-Hate Relationship With Weird Lightsabers," 27 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'muck.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of muck


13th century, in the meaning defined at sense 1


14th century, in the meaning defined at transitive sense 1a

History and Etymology for muck


Middle English muk, perhaps from Old English -moc; akin to Old Norse myki dung

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Time Traveler for muck

Time Traveler

The first known use of muck was in the 13th century

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Statistics for muck

Last Updated

20 Feb 2020

Cite this Entry

“Muck.” Dictionary, Merriam-Webster, Accessed 21 Feb. 2020.

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More Definitions for muck


How to pronounce muck (audio)

English Language Learners Definition of muck

: wet dirt or mud
chiefly British : solid waste from farm animals
informal : something that is disgusting


\ ˈmək How to pronounce muck (audio) \

Kids Definition of muck

1 : mud, mire
2 : soft moist barnyard manure

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Thesaurus: All synonyms and antonyms for muck

Rhyming Dictionary: Words that rhyme with muck

Spanish Central: Translation of muck

Nglish: Translation of muck for Spanish Speakers Encyclopedia article about muck

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