IPA: /muː/
KK: /mu/
To make the deep sound that cows produce, often described as a low sound.
The cow began to moo loudly in the field.
The sound that a cow makes, often described as a low, deep noise.
The cow let out a loud moo when it saw the farmer.
This word originates from Old English 'mū', which is an imitative word representing the sound made by cows. It refers specifically to the characteristic sound that cows make.
Imagine the sound a cow makes — 'moo' is a word that directly imitates that sound.