moo: meaning, definition, pronunciation and examples
C1 (low-frequency, specialized/onomatopoeic)informal, childish, onomatopoeic
Quick answer
What does “moo” mean?
The low, deep vocal sound made by a cow.
Audio
Pronunciation
Definition
Meaning and Definition
The low, deep vocal sound made by a cow.
To emit the sound characteristic of a cow; by extension, to make a similar low, deep sound. Used informally as a noun to refer to a cow (e.g., 'the moo cows'), or jocularly/childishly as a verb for speaking in a dull, repetitive manner.
Dialectal Variation
British vs American Usage
Differences
Usage is identical. The word is a direct sound imitation and carries no regional variation in meaning or application.
Connotations
In both varieties, the primary connotation is of rural life, farming, or childishness. May be used humorously or dismissively ('He just mooed on about his problems').
Frequency
Equally low frequency in both dialects, confined to specific contexts.
Grammar
How to Use “moo” in a Sentence
N/V: The cow [mooed].N/V: We heard a [moo] from the field.Vocabulary
Collocations
Examples
Examples of “moo” in a Sentence
verb
British English
- The heifers mooed plaintively for their feed.
- Stop mooing about the weather and let's go!
American English
- The cows are mooing up by the barn.
- He just mooed through his presentation in a monotone.
adjective
British English
- We took the kids to see the moo cows.
- (Informal/Childish) Where's your moo-cow toy?
American English
- They have a cute moo-cuh pillow in the nursery. (Phonetic spelling variant)
- It's just a bunch of moo sounds to me.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Only in specific fields like zoology, animal behaviour, or linguistics (as an example of onomatopoeia).
Everyday
Used with/for children, on farms, or in humorous/imitative contexts.
Technical
Rare; potential use in veterinary science or ethology to describe vocalisation.
Watch out
Common Mistakes When Using “moo”
- Incorrect plural: 'moos' (correct) not 'mooes'.
- Overusing it in formal contexts.
- Confusing with 'mood' in writing.
FAQ
Frequently Asked Questions
It is a real word classified as an onomatopoeia. It is a noun (a moo) and a verb (to moo) entered in standard dictionaries.
Typically, no. It is specific to bovine cattle. Similar sounds from other animals have different onomatopoeic words (e.g., baa for sheep, oink for pigs).
It is informal and mildly derogatory, implying their speech is as monotonous, low, and meaningless as a cow's sound. Use with caution, only in very casual settings.
It is a regular verb: moo (present) -> mooed (past simple and past participle). 'The cow mooed all yesterday afternoon.'
The low, deep vocal sound made by a cow.
Moo is usually informal, childish, onomatopoeic in register.
Moo: in British English it is pronounced /muː/, and in American English it is pronounced /muː/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “until the cows come home (related imagery, not containing 'moo')”
Learning
Memory Aids
Mnemonic
The word looks like two wide-open eyes (oo) on a cow's face saying 'M'.
Conceptual Metaphor
SOUND IS ANIMAL (specific to cattle); DULL SPEECH IS ANIMAL NOISE.
Practice
Quiz
In which context would the verb 'to moo' be LEAST appropriate?