"Sleeper" validity in different word game dictionaries

Dictionary Validity
Scrabble US(US/Canada/Thailand - TWL/NWL) Yes
Scrabble UK(International - SOWPODS/CSW) Yes
Words with Friends(WWF) Yes

"sleeper" Definition

  1. (used with an adjective) a person who sleeps in a particular way
  2. a person who is asleep
  3. a night train with beds for passengers on it
  4. (also sleeping car) a coach on a train with beds for people to sleep in
  5. (British English) (North American English tie) one of the heavy pieces of wood or concrete (= a hard building material) on which the rails (= metal bars) on a railway track are laidTopics Transport by bus and trainc2
  6. (informal, especially North American English) a film, play or book that for a long time is not very successful and then is suddenly a successTopics Successc2, Film and theatrec2
  7. (also sleeper agent) a spy who is sent to live in a country as a normal citizen and is not used until much later
  8. (British English) a ring or piece of metal that you wear in an ear that has been pierced (= had a hole made in it) to keep the hole from closing

"sleeper" Synonyms & Antonyms

"sleeper" synonyms:

  • dozer,
  • slumberer,
  • dreamer,
  • sleeping-beauty,
  • spy,
  • agent,
  • mole,
  • operative,
  • intelligencer,
  • spook,
  • undercover,
  • asset,
  • emissary,
  • plant,
  • infiltrator,
  • informer,
  • counterspy,
  • nark,
  • snooper

"sleeper" antonyms:

  • antidepressant,
  • stimulant,
  • analeptic,
  • cocaine,
  • upper,
  • amphetamine,
  • tonic,
  • pick-me-up,
  • psychostimulant,
  • restorative,
  • shot-in-the-arm,
  • business-dress,
  • daytime-clothes,
  • formal-clothing,
  • formal-wear,
  • outdoor-clothes,
  • child-prodigy,

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