Definition of sleeper

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  • sleeper is a valid Scrabble US word with a point value of 9
  • sleeper is a valid Scrabble UK word with a point value of 9
  • sleeper is a valid Words with friends word with a point value of 11

Definition of sleeper

  • a rester who is sleeping (noun)

    Synonyms

    1. slumberer
  • one of the cross braces that support the rails on a railway track (noun)

    Examples

    1. the British call a railroad tie a sleeper

    Synonyms

    1. crosstie
    2. railroad tie
    3. tie
  • tropical fish that resembles a goby and rests quietly on the bottom in shallow water (noun)

    Synonyms

    1. sleeper goby
  • a passenger car that has berths for sleeping (noun)

    Synonyms

    1. sleeping car
    2. wagon-lit
  • an unexpected achiever of success (noun)

    Examples

    1. the winner was a true sleeper--no one expected him to get it
  • an unexpected hit (noun)

    Examples

    1. that movie was the sleeper of the summer
  • a piece of furniture that can be opened up into a bed (noun)
  • a spy or saboteur or terrorist planted in an enemy country who lives there as a law-abiding citizen until activated by a prearranged signal (noun)
  • pajamas with feet; worn by children (noun)

See definition of sleeper in Merriam Webster