\ ˈmü How to pronounce moo (audio) \
mooed; mooing; moos

Definition of moo

intransitive verb

: to make the throat noise of a cow

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Other Words from moo

moo noun

Examples of moo in a Sentence

Recent Examples on the Web But getting the animals to calm down can be difficult when they are distracted by herdmates mooing or baaing in the distance. Dionne Searcey, New York Times, 13 May 2020 Innocent Ntirengaya’s request to marry Divine Uwamahoro is accepted, and so is the dowry—eight cows that have been mooing for hours in a nearby pasture. Caterina Clerici & Eléonore Hamelin, Marie Claire, 1 Feb. 2019 The animals mooed their dissent but finally boarded the trailer. NBC News, 30 June 2018 But some cows — not all, as activists like to claim — cry (or moo mournfully) when their young are taken away. Mark Kurlansky, Time, 7 May 2018 The cow brought in to provide fresh milk for the cafe has been mooing all night. Bloomberg News, The Denver Post, 2 Mar. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'moo.' 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 moo

1549, in the meaning defined above

History and Etymology for moo


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Cite this Entry

“Moo.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2021.

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More Definitions for moo


\ ˈmü How to pronounce moo (audio) \
mooed; mooing

Kids Definition of moo

 (Entry 1 of 2)

: to make the sound of a cow : low


plural moos

Kids Definition of moo (Entry 2 of 2)

: the low sound made by a cow

More from Merriam-Webster on moo

Thesaurus: All synonyms and antonyms for moo

Nglish: Translation of moo for Spanish Speakers


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