moo

American  

[moo] / mu /

verb (used without object)

mooed, mooing

1. to utter the characteristic deep sound of a cow; low.

---

noun

plural

moos

1. a mooing sound.

moo British  

/ muː /

verb

1. (intr) (of a cow, bull, etc) to make a characteristic deep long sound; low

---

interjection

1. an instance or imitation of this sound

Etymology

Origin of moo

First recorded in 1540–50; imitative

Example Sentences

Children ages 4 to 8 will think they know what’s coming from the placid, old-timey barnyard setting, where the horse says “neigh” and the cow says “moo.”

From The Wall Street Journal

When she was done mooing, she looked surprised.

From Literature

The word “milk” prompted some mournful moos from below.

From Literature

Squawking and mooing and laughing and cheering filled the barn.

From Literature

In addition to a “HYEWEST” vanity plate and longhorns on the front, there was a button inside that would make the car moo.

From Los Angeles Times