Definition of horse noun from the Oxford Advanced American Dictionary

      

    horse

     noun
    noun
    NAmE//hɔrs//
     
     
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  1. 1a large animal with four legs, a mane (= long thick hair on its neck), and a tail. Horses are used for riding on, pulling carriages, etc. He mounted his horse and rode off. a horse and cart see also colt, filly, foal, gelding, mare, stallion
  2. 2the horses [plural] (informal) horse racing He lost a lot of money on the horses (= by gambling on races).
  3. 3= vaulting horse see also clothes horse, hobbyhorse, Quarter Horse, rocking horse, sea horse, stalking horse, Trojan horse
  4. Idioms
    beat/flog a dead horse(informal)
     
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    to waste your effort by trying to do something that is no longer possible
    be/get on your high horse(informal)
     
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    to behave in a way that shows you think you are better than other people
    change/switch horses in midstream
     
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    to change to a different or new activity while you are in the middle of something else; to change from supporting one person or thing to another
    close, etc. the barn door after the horse has escaped
     
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    to try to prevent or avoid loss or damage when it is already too late to do so
    close, etc. the barn door after the horse has escaped
     
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    to try to prevent or avoid loss or damage when it is already too late to do so
    a dark horse
     
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    a person taking part in a race, etc. who surprises everyone by winning
    eat like a horse(informal)
     
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    to eat a lot She may be thin, but she eats like a horse.
    (straight) from the horse's mouth(informal)
     
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    (of information) given by someone who is directly involved and therefore likely to be accurate
    get off your high horse(informal)
     
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    to stop behaving in a way that shows you think you are better than other people
    hold your horses(informal)
     
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    used to tell someone that they should wait a moment and not be so excited that they take action without thinking about it first
    a horse of a different color(informal)
     
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    a completely different situation or person from the one previously mentioned
    if wishes were horses, beggars would/might ride(old-fashioned)(saying)
     
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    wishing for something does not make it happen
    look a gift horse in the mouth
     
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    (usually with negatives) (informal) to refuse or criticize something that is given to you for nothing I'm never one to look a gift horse in the mouth.
    a one, two, three, etc. horse race
     
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    a competition or an election in which there are only one, two, etc. teams or candidates with a chance of winning The women's tennis championship was a two horse race between last year's winners New Rochelle and the previous champions Hyde Park.
    put the cart before the horse
     
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    to put or do things in the wrong order
    wild horses would not drag, make, etc. somebody (do something)
     
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    used to say that nothing would prevent someone from doing something or make them do something they do not want to do
    you can lead a horse to water, but you can't make it drink(saying)
     
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    you can give someone the opportunity to do something, but you cannot force them to do it if they do not want to
See the Oxford Advanced Learner's Dictionary entry: horse