Definition of sleeper in English:

sleeper

Syllabification: sleep·er
Pronunciation: /ˈslēpər
 
/

noun

  • 1 [with adjective] A person or animal who is asleep or who sleeps in a specified way: he was a light sleeper, for long periods an insomniac
    More example sentences
    • As a light sleeper, I can only struggle now to find better ear-plugs, or hope to sleep with my window forever open and get used to the outside noises as well.
    • I'm usually a light sleeper in unfamiliar situations, so it's not surprising that I would be a little jumpy.
    • He came through the front door and was surprised that she still didn't come to, since she was a light sleeper.
  • 2A thing used for or connected with sleeping, in particular.
    More example sentences
    • A friend's first experience on a sleeper last week got him to London four hours late.
    • The train, which has seven second-class sleeper with a pantry car, has 504 seats.
    • My experience of sleeper trains spans the globe from Finland to Australia.
  • 2.1A train carrying sleeping cars.
    More example sentences
    • A special sleeper train service had been put on; it pulled into York station at 3.32 am, and deposited excited royalists at King's Cross at 7.39 am.
    • The £465 per person price includes seven nights' hotel accommodation, one night on a sleeper train, breakfast each day and the services of an experienced guide.
    • He caught a sleeper train from Cairo to Aden in The Yemen.
  • 2.2A sleeping car, or a berth in one.
    More example sentences
    • There are three sleepers on this train, as well as the usual Pacific Parlour, Dining, and Sightseer cars.
    • After dinner, there followed a restless night in the four-berth sleeper listening to the train wheels squealing and screeching.
    • It had 2 engines, 3 coaches, lounge car, dining car, 2 sleepers and 6 freight cars.
  • 2.3 (often sleepers) chiefly North American One-piece coverall pajamas for a baby or small child.
    More example sentences
    • Take one pair of child's sleepers and soak it in warm water.
    • Knitted fabrics, such as those used in T-shirts, sweatshirts, infant sleepers and sportswear, are examples of unstable fabrics.
    • Now I want to give you a description, I know we put the picture up, but the little boy has black hair, brown eyes, and he was last seen - there he is right there - wearing a red sleeper.
  • 2.4North American A sofa or chair that converts into a bed.
    More example sentences
    • Both kinds come in models that can fit either regular sofas or sleepers, as well as easy chairs.
    • A sleeper sofa is the solution chosen by most people in studios, but this limits your options in terms of design, and unmaking and re-making the bed every day can be enough to wear you out.
    • That night Daniel didn't sleep with me; he slept on the sleeper sofa.
  • 3A movie, book, play, etc., that achieves sudden unexpected success after initially attracting little attention, typically one that proves popular without much promotion or expenditure.
    More example sentences
    • Just as the initial comic book issue became a sleeper success, so too has the silver screen Spider-Man.
    • The film was a sleeper hit and even spawned a low-budget sequel.
    • Avoiding a quiet sleeper of a film like this merely deprives you of an exciting movie experience.
  • 3.1An antique whose true value goes unrecognized for some time.
    More example sentences
    • Dealers and collectors love to find a sleeper, and one such is illustrated here.
    • Although we were unable to make out a signature, there is a possibility this antique painting could be a genuine sleeper and a real investment for a lucky buyer.
  • 3.2 (also sleeper agent) A secret agent who remains inactive for a long period while establishing a secure position.
    More example sentences
    • A staple of the Cold War espionage novels that used to populate best-seller lists was the sleeper agent.
    • He was inserted as a sleeper agent five years ago.
    • Since Vladimir Putin, a former KGB officer, took the helm in the Kremlin, Russian intelligence networks in central and western Europe have been rebuilt and secret service sleepers activated.
  • 4British A railroad tie.
    More example sentences
    • Last week, 80 rivets were also removed from sleepers on a railroad located between the Ban Pa Rai and Ban Kong Sai Railway Stations in Muang District of Pattani.
    • Some days ago, Billy had been found prostrate between the steel sleepers of the railroad.
    • Black plastic between the sleepers and the soil will stop any leeching into the soil.
  • 5A stocky fish with mottled coloration that occurs widely in warm seas and fresh water.
    • Dormitator and other genera, family Gobiidae (or Eleotridae): many species
    More example sentences
    • Most fish species cannot tolerate such fluctuations, but some gobies and sleepers have adapted physiologically in ways that have enabled them to thrive.
    • Yet most gobies and many sleepers in the world are marine.
    • They are commonly known as sleepers, or gudgeons in Australia and New Guinea, and in New Zealand they are called bullies.

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Pronunciation: skōSH
noun
a small amount; a little