Definition Synonyms
Definition of sleeper - Reverso English Dictionary
Noun
1.
unexpected successsomething that becomes unexpectedly successful
- That low-budget film turned out to be a sleeper hit..
2.
transportationUK railway car with beds for passengersUK
- We booked a sleeper for the overnight journey.
3.
convertible furnitureUS furniture that converts into a bedUS
- We bought a sleeper sofa for the guest room.
4.
sleepperson who is sleeping
- The sleeper in the next room snored loudly..
5.
jewelryUK small earring to keep piercing openUK
- She wore a sleeper in her new piercing.
6.
clothingUS pajamas covering whole body including feetUS
- The child wore a cozy sleeper to bed.
7.
espionagespy living secretly until activated
- The agent was a sleeper for years.
8.
railwayTECH. UK heavy beam supporting railway tracksTECH. UK
- The workers replaced the old sleepers.
9.
medicalDated sedative drugDated
- The doctor prescribed a sleeper for insomnia.
Images of sleeper

railway car with beds for passengers 
furniture that converts into a bed 
heavy beam supporting railway tracks
Expressions with sleeper
💡 Discover popular phrases, idioms, collocations, or phrasal verbs. Click any expression to learn more, listen to its pronunciation, or save it to your favorites.
item that becomes popular later after being unnoticed at first
The film was a sleeper hit, growing famous months after release.
unexpected achievement after initial lack of attention
The indie film became a sleeper success after a year.
group secretly waiting to perform harmful acts
The authorities uncovered a sleeper cell planning an attack.
someone who does not wake up easily
My brother is a heavy sleeper and missed the alarm.
railway car with beds for passengers to sleep
We booked a sleeper car for the overnight journey.
person who sleeps in public or outdoor places
The city has initiated a program to assist rough sleepers during winter..
person who feels too warm while sleeping
As a hot sleeper, she prefers light blankets.
bed in a train for passengers to sleep
She booked a railway sleeper for the overnight journey.
person who needs less sleep than most people
She is a short sleeper and wakes up early refreshed.
person unexpectedly influential in a situation
She was a sleeper agent in the boardroom, changing the company's direction.
spy remaining inactive until needed
The sleeper spy lived quietly for years before being activated.
one-piece warm sleepwear with feet for children or babies
My toddler wears a blanket sleeper every night.
small compartment in a truck for the driver to sleep
The driver rested in the sleeper berth during the break.
person who sleeps deeply and is not easily woken
My brother is a sound sleeper and never hears the alarm.
inactive account not used for a long time
The hacker reactivated a sleeper account to access the system.
truck cab with a bed for sleeping
The driver rested in the sleeper cab during the long haul.
group of inactive agents awaiting a signal
The sleeper nest was activated during the mission.
any Somniosidae member, typically big, chilly-sea dwelling, sluggish, not hostile
The fisherman identified it as a sleeper shark from the Somniosidae family.
Origin of sleeper
Old English, slæper (one who sleeps)
Terms with sleeper included in their meaning
💡 A powerful way to uncover related words, idioms, and expressions linked by the same idea — and explore meaning beyond exact word matches.
timekeeping
clock that wakes a sleeper
attractive sleeper
person who is asleep and looks very attractive
sleeper
person who sleeps a lot or easily
clothing
blanket sleeper covering the feet
rail transport
large nail fixing railway line to sleeper
deep sleeper
someone who does not wake up easily
furniture
related to or resembling a sleeper
Examples of sleeper in a sentence
Her novel was a sleeper, gaining popularity years after release. The sleeper was comfortable for the long trip. They reserved a sleeper for the cross-country train ride. The sleeper chair was perfect for the small apartment. They decided to buy a sleeper for the living room. The sleeper didn't wake up despite the noise.
A sleeper can be hard to wake. The jeweler fitted a sleeper after piercing her ear. Leave the sleeper in until the hole heals. The baby slept soundly in her sleeper. Pack an extra sleeper for the overnight trip. The sleeper was activated after a decade. Authorities discovered a sleeper in the organization. Engineers inspected the sleepers for damage. The train derailed due to faulty sleepers. He took a sleeper to calm his nerves before the flight. After surgery, the patient was given a sleeper to aid recovery.
View all translations of sleeper
Click below to see the appropriate translations facing each meaning.
- French:succès surprise, wagon-lit, ...
- German:Überraschungserfolg, Schlafwagen, ...
- Italian:successo inaspettato, vagone letto, ...
- Spanish:sorpresa, coche cama, ...
- Portuguese:surpresa, carruagem-cama, ...
- Chinese:黑马, 卧铺车厢, ...
- Japanese:意外な成功, 寝台車, ...
- Arabic:نَجَاحٌ مُفَاجِئ, عَرَبَة نَوْم, ...
- Hebrew:לַהִיט רָדוּם, קָרוֹן שֵׁינָה, ...
- Russian:спящий, спальный вагон, ...
- Ukrainian:несподіваний успіх, спальний вагон, ...
- Hindi:अप्रत्याशित सफलता, सोफा बेड, ...

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