Definition of moo in English:

moo

Line breaks: moo
Pronunciation: /muː
 
/

verb (moos, mooing, mooed)

[no object]
  • Make the characteristic deep resonant vocal sound of cattle: the cows mooed from the barn
    More example sentences
    • Several of the bulls started bellowing and the cows mooing.
    • Adding to the mesmerizing murmur of the flowing water, the sounds of birds singing and cows mooing left one feeling totally at peace.
    • We drove down a winding country road surrounded by large vegetable gardens in various stages of harvest, cow pastures with lots of passive cows mooing softly and small rural homes.

noun (plural moos)

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  • 1The characteristic sound of cattle: the doleful moo of a cow
    More example sentences
    • Costing £9.99, the cow moos and shakes uncontrollably when switched on.
    • All I could hear, for half a mile, was the sound of our feet crunching on the gravel, and the gentle moos coming from the cows in the fields.
    • All the other campers were gone to either river raft or kayak, and the campground was totally quiet, all you could hear were the crickets and an occasional moo from a cow.
  • 2British informal An irritating or incompetent woman: you silly old moo
    More example sentences
    • There is, finally and thankfully, a murder and one of the silly, uptight moos gets locked up.
    • Grace was given the chance to redeem herself and the silly moo didn't take it
    • She thinks the stupid moo is acting in an understandable fashion.

Origin

mid 16th century: imitative.

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Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody