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slumber

American  
[sluhm-ber] / ˈslʌm bər /

verb (used without object)

  • slumbers,
    present (3rd person singular)
  • slumbered,
    past participle,  past
  • slumbering
    present participle
  1. to sleep, especially lightly; doze; drowse.

  2. to be in a state of inactivity, negligence, quiescence, or calm.

    Vesuvius is slumbering.


verb (used with object)

  • slumbers,
    present (3rd person singular)
  • slumbered,
    past participle,  past
  • slumbering
    present participle
  1. to spend or pass (time) in slumbering (often followed by away, out, orthrough ).

    to slumber the afternoon away.

  2. to dispel or forget by slumbering (often followed byaway ).

    to slumber cares away.

noun

  • slumbers
    plural
  1. Sometimes slumbers. sleep, especially light sleep.

  2. a period of sleep, especially light sleep.

  3. a state of inactivity, quiescence, etc.

slumber British  
/ ˈslʌmbə /

verb

  1. (intr) to sleep, esp peacefully

  2. (intr) to be quiescent or dormant

  3. to spend (time) sleeping

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. (sometimes plural) sleep

  2. a dormant or quiescent state

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of slumber

1175–1225; (v.) Middle English slumeren, frequentative of slumen to doze, derivative of Old English slūma sleep ( see -er 6); compare German schlummern; (noun) Middle English slomur, slomber, derivative of the v.

Explanation

Slumber means "sleep" — as a verb or noun. If you're a sound sleeper, you might slumber peacefully right through a thunderstorm, your slumber undisturbed. To slumber is to sleep, sometimes specifically to sleep lightly or doze. You can slumber in your bed, in your airplane seat, or through your alarm in the morning. Slumber can also describe a peacefulness, like your quiet street that seems to slumber early in the morning. The phrase slumber party was first used in the 1940s to mean a gathering held at night, that usually involves very little slumbering.

Keep Reading on Vocabulary.com

Vocabulary lists containing slumber

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The idea of hosting a slumber party, she said, was inspired in part by the 2006 movie “Night at the Museum,” except with cats.

From Los Angeles Times Aug. 10, 2026

But in the 1985 novel told from his point of view, he’s reborn as a rock star, emerging from a long, depressive slumber just in time to seduce the MTV generation.

From Salon Jun. 13, 2026

The clinical standard for measuring slumber is an in-lab overnight study, or a polysomnogram.

From The Wall Street Journal Jun. 7, 2026

Record sightings have been reported again this year as the bears emerge from their winter slumber, according to local media.

From Barron's May 8, 2026

I drift away into a deep, salty-teared slumber.

From "Like Vanessa" by Tami Charles

As the sun still slumbers early Monday, patches of dense fog are cloaking parts of Puget Sound and the southwest interior, including areas in and around Tacoma, Bellevue, Seattle and Bremerton.

From Seattle Times Oct. 16, 2023

As his successor Major Burns continues in the role, it is unclear how often his daily performance will be waking a monarch from his slumbers.

From BBC Oct. 26, 2022

When the wind blows over the nearby Salton Sea, wind chimes serenade as Slab City slumbers.

From Los Angeles Times May 10, 2021

Ghosts of an ailing industry surround Gravitricity’s test site: A supply vessel serving North Sea oil rigs slumbers nearby.

From Science Magazine Apr. 22, 2021

After this one, he touches my solar plexus with his outspread hand, adding, “What slumbers in the heart is what slumbers in the stone, understand?”

From "I'll Give You the Sun" by Jandy Nelson

Hundreds of older people slumbered on thin mats on the hard lobby floor at a community centre in Uki city.

From Barron's Jul. 30, 2026

Parts of him that had long slumbered were waking up.

From Salon Feb. 18, 2025

Before Page Dickey and Francis Bosco Schell spent a single night in their house in northwestern Connecticut, clay pots of flower bulbs slumbered there, setting down roots in a space of their own.

From Seattle Times Sep. 20, 2023

While RSV and influenza slumbered these past few years, society was learning an unprecedented amount about their behavior and the effect public health actions have on them.

From Slate Dec. 5, 2022

The bookshelves with their neatly ordered manuscripts slumbered in the shadows, while overhead pale moonlight wafted through the stained glass windows, lighting on the bronze statues of past Librarians standing vigil over the galleries.

From "The Reader" by Traci Chee

Treasury debt is a slumbering giant that is starting to stir.

From MarketWatch Aug. 3, 2026

"The border with Lithuania is in 30 minutes," the assistant shouted to rouse slumbering passengers.

From Barron's Oct. 29, 2025

Shortly before 01:00 BST on 16 October, the slumbering streets of Benwell were rent by the roar of an enormous explosion.

From BBC May 14, 2025

Or a small, scrunched face slumbering in a stroller.

From Los Angeles Times Mar. 26, 2025

Percy remembered what Juno had said—-for months he has been slumbering, but now he is awake.

From "The Son of Neptune" by Rick Riordan

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