sleepernoun
uk/ˈsliː.pər/us/ˈsliː.pɚ/sleeper noun (PERSON)
someone who sleeps in the stated way:
Thesaurus: synonyms and related words
Animal physiology: sleep & sleeping
- beauty
- bed
- bunk
- bye-byes
- catnap
- conk
- delayed sleep phase pattern
- disco nap
- hit
- kip
- nod
- sleep over
- sleepyhead
- slept
- sound
- soundly
- tuck
- tuck sb in
- turn
- turn in
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sleeper noun (ON TRAIN)
acarriage in a train with beds for passengers to sleep in, or one of the beds in this carriage, or the type of train that has these carriages:
Thesaurus: synonyms and related words
Railways: trains & parts of trains
- air brake
- baggage car
- bogie
- boiler
- bullet train
- caboose
- choo-choo
- coach
- couchette
- diesel
- emergency cord
- freight car
- intercity
- maglev train
- rolling stock
- shunt
- shuttle
- sleeping car
- truck
- wagon-lit
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sleeper noun (BLOCK)
[ C ] UK US railroad tie one of the heavy horizontal blocks that supports a railway track
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Railways & railway lines
- Amtrak
- barrier
- buffer
- cable railway
- funicular
- grade crossing
- junction
- light railway
- metro
- monorail
- narrow-gauge
- point
- railroad
- railroad tie
- rapid-transit
- signal
- subway
- switch
- switchback
- track
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sleeper noun (RING)
[ C ] UK a small gold or silver ring that is worn in a pierced ear (= one that has a hole in it) to stop the hole from closing while other earrings are not being worn
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Jewellery
- badge
- beaded
- bindi
- bling
- charm bracelet
- choker
- clip-on
- coronet
- crown
- filigree
- fob
- hoop
- knuckleduster
- paste
- pearl
- precious stone
- semiprecious
- tiepin
- trinket
- wedding ring
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sleeper noun (SUDDEN ACTIVITY)
[ C ] a person or thing that is suddenly and surprisingly successful after a long period of not achieving anything
[ C ] a spy who only becomes active a long time after being put in place by an organization or country
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Potential
- accident
- an accident waiting to happen idiom
- auspicious
- be an actor, cook, etc. in the making idiom
- budding
- embryo
- fertile
- making
- not be beyond the wit of man/sb idiom
- potential
- potentiality
- potentially
- promise
- prospect
- realizable
- room
- room for improvement idiom
- untapped
- viable
- wit
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You can also find related words, phrases, and synonyms in the topics:
sleeper noun (CLOTHING)
[ C ] US UK sleepsuit a piece of clothing for a baby that covers the whole body, worn especially at night
Thesaurus: synonyms and related words
Babies' & children's clothing
- Babygro
- bib
- bootee
- diaper
- feeder
- layette
- nappy
- onesie
- rompers
- sailor suit
- sleepsuit
- snowsuit