sleeper
1. [ noun ] a rester who is sleeping
Synonyms: slumberer
Related terms: person rester sleepwalker dreamer sleeping_beauty Rip_van_Winkle somniloquist snorer sleep
2. [ noun ] (housing,transportation) a passenger car that has berths for sleeping
Synonyms: wagon-lit sleeping_car
Related terms: passenger_car drawing_room roomette sleep
3. [ noun ] a piece of furniture that can be opened up into a bed
Related terms: furniture sleep
4. [ noun ] an unexpected achiever of success
Examples:

"the winner was a true sleeper--no one expected him to get it"

Related terms: achiever
5. [ noun ] (military,politics) 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
Related terms: spy terrorist saboteur sleeper_nest
6. [ noun ] an unexpected hit
Examples:

"that movie was the sleeper of the summer"

Related terms: hit
7. [ noun ] one of the cross braces that support the rails on a railway track
Synonyms: railroad_tie crosstie tie
Examples:

"the British call a railroad tie a sleeper"

Related terms: brace railroad_track
8. [ noun ] Last name, frequency rank in the U.S. is 9631
9. [ noun ] (zoology) tropical fish that resembles a goby and rests quietly on the bottom in shallow water
Synonyms: sleeper_goby
Related terms: percoid_fish Eleotridae
Similar spelling:   sleepers
  slipper
  slapper
  slippery
  slippered
  Slover
  sliver
  Slifer
  slaver
  slobber
  slivery
  slavery
  slabber