Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Advanced Dictionary    
Display options
Show syllables
Show Lookup History
Double-Click Lookup
  Show Spanish support
 
Pronunciation
Wordsmyth
  Phonics
  IPA
 
Entry formats
Standard
  Classic
 
Lookup History
sleeper

sleep·er

sleeper

 
pronunciation:
sli pr
part of speech: noun
definition 1: a person or thing that sleeps.
definition 2: a railroad passenger car designed for sleeping.
They booked a sleeper for the long trip.
definition 3: anyone or anything that succeeds unexpectedly, esp. after having been unnoticed or obscure.
The low-budget film was a sleeper that made millions.