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sleeper

 
Noun sleeper has 8 senses
  1. sleeper, slumberer - a rester who is sleeping
    --1 is a kind of rester
    --1 has particulars:
     dreamer; Rip van Winkle; sleeping beauty; sleepwalker, somnambulist, noctambulist; snorer; somniloquist
    Derived form: verb sleep1
  2. sleeper - 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
    --2 is a kind of
    spy, undercover agent; saboteur, wrecker, diversionist; terrorist
    --2 is a member of sleeper nest
  3. sleeper - an unexpected achiever of success; "the winner was a true sleeper--no one expected him to get it"
    --3 is a kind of
    achiever, winner, success, succeeder
  4. tie, railroad tie, crosstie, sleeper - one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
    --4 is a kind of brace, bracing
    --4 is a part of railroad track, railroad, railway
  5. sleeping car, sleeper, wagon-lit - a passenger car that has berths for sleeping
    --5 is a kind of passenger car, coach, carriage
    --5 has parts: drawing room; roomette
    Derived form: verb sleep2
  6. sleeper - a piece of furniture that can be opened up into a bed
    --6 is a kind of
    furniture, piece of furniture, article of furniture
    Derived form: verb sleep2
  7. sleeper, sleeper goby - tropical fish that resembles a goby and rests quietly on the bottom in shallow water
    --7 is a kind of percoid fish, percoid, percoidean
    --7 is a member of Eleotridae, family Eleotridae
  8. sleeper - an unexpected hit; "that movie was the sleeper of the summer"
    --8 is a kind of
    hit, smash, smasher, strike, bang
sleep in sleep late sleep off sleep out sleep over sleep talking sleep terror disorder sleep with sleeper sleeper cell sleeper goby sleeper nest sleeper shell sleepers sleepily sleepinducer sleepiness

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