mooed; mooing; moos

intransitive verb

: to make the throat noise of a cow
moo noun

Example Sentences

Recent Examples on the Web Long after the longhorns had walked past him, 2-year-old Cruz Banda Neff continued to wave and moo at parade participants from his perch on father Alan Neff’s shoulders. Megan Rodriguez, San Antonio Express-News, 5 Feb. 2022 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 See More

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.

Word History



First Known Use

1549, in the meaning defined above

Time Traveler
The first known use of moo was in 1549

Dictionary Entries Near moo

Cite this Entry

“Moo.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2022.

Kids Definition

moo 1 of 2


: to make the low sound of a cow : low


2 of 2


: the sound a cow makes when it moos

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