sleep-learning
sleep-learning

sleeper


Definition: Meaning of, sleeper in English to English dictionary.

Pronunciation: / ˈsliːpə /

  • noun
  • synonym
  • antonym
Word Forms:
Singular Plural
sleeper sleepers
[countable]
  1. someone who sleeps in a particular way
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  2. someone who is asleep
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  3. British English a heavy piece of wood or CONCRETE that supports a railway track [=  tie American English]
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  4. a night train with carriages that have beds for passengers to sleep in
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  5. a SLEEPING CAR
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  6. American English a bed on a train for a passenger to sleep in
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  7. especially American English a film, book etc which is successful, even though people did not expect it to be
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  8. American English a piece of clothing for a baby that covers its whole body including its feet
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  9. a SPY who is sent to a particular place and who lives an ordinary life there until a later time, when they begin their SPYing activities
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synonym
antonym

sleeper used in phrases

  • sleeper cell (noun)
    1. a cell of sleepers
  • sleeper goby (noun)
    1. tropical fish that resembles a goby and rests quietly on the bottom in shallow water
  • sleeper nest (noun)
    1. a nest of sleepers awaiting a prearranged signal
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word of the day

autosomal recessive disease
Pronunciation: rɪˈsɛsɪv dɪˈziːz
Parts of Speech: noun
a disease caused by the presence of two recessive mutant genes on an autosome
sleeper cell