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What is the world's largest desert?

desert

1 American  
[dez-ert] / ˈdɛz ərt /

noun

  1. An image of the word desert as defined by a region so arid because of little rainfall that it supports only sparse and widely spaced vegetation or no vegetation at all.

    a region so arid because of little rainfall that it supports only sparse and widely spaced vegetation or no vegetation at all.

    The Sahara is a vast sandy desert.

    Synonyms:
    wasteland, waste
  2. any area in which few forms of life can exist because of lack of water, permanent frost, or absence of soil.

    Synonyms:
    wasteland
  3. an area of the ocean in which it is believed no marine life exists.

  4. (formerly) any unsettled area between the Mississippi and the Rocky Mountains thought to be unsuitable for human habitation.

  5. any place lacking in something.

    The town was a cultural desert.

    Synonyms:
    wasteland

adjective

  1. of, relating to, or like a desert.

    a desert landscape.

    Synonyms:
    arid, infertile, barren, desolate
  2. occurring, living, or flourishing in the desert.

    a desert tribe; a desert palm.

  3. designed or suitable for wear in the desert, as cool, protective clothing.

    a big, wide-brimmed desert hat.

desert 2 American  
[dih-zurt] / dɪˈzɜrt /

verb (used with object)

  • deserts,
    present (3rd person singular)
  • deserted,
    past participle,  past
  • deserting
    present participle
  1. to leave (a person, place, etc.) without intending to return, especially in violation of a duty, promise, or the like.

    He deserted his wife.

    Synonyms:
    forsake, quit, leave, abandon
  2. (of military personnel) to leave or run away from (service, duty, etc.) with the intention of never returning.

    Terrified of the approaching battle, he deserted his post just before dawn.

  3. to fail (someone) at a time of need.

    None of his friends had deserted him.


verb (used without object)

  • deserts,
    present (3rd person singular)
  • deserted,
    past participle,  past
  • deserting
    present participle
  1. to forsake or leave one's duty, obligations, etc. (sometimes followed by from, to, etc.).

    Many deserted during the food shortage.

    Synonyms:
    resign, abdicate
  2. (of military personnel) to leave service, duty, etc., with no intention of returning.

    Troops were deserting to the enemy.

    Synonyms:
    go AWOL
desert 3 American  
[dih-zurt] / dɪˈzɜrt /

noun

  1. Usually deserts reward or punishment that is deserved.

    Death was his desert.

    Synonyms:
    justice, reward, recompense, payment, due, penalty, retribution, retaliation
  2. the state or fact of deserving reward or punishment.

  3. the state or condition of being worthy, as in character or behavior.

    Synonyms:
    worth, virtue, merit

idioms

  1. get / receive / etc. one's (just) deserts, to be punished or rewarded in a manner appropriate to one's actions or behavior.

    Some people felt he had gotten his just deserts, having been imprisoned and relieved of his ill-gotten gains, but others would have preferred old-style public flogging, followed by drawing and quartering, and who can blame them?

desert 1 British  
/ dɪˈzɜːt /

noun

  1. (often plural) something that is deserved or merited; just reward or punishment

  2. the state of deserving a reward or punishment

  3. virtue or merit

"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

desert 2 British  
/ dɪˈzɜːt /

verb

  1. (tr) to leave or abandon (a person, place, etc) without intending to return, esp in violation of a duty, promise, or obligation

  2. military to abscond from (a post or duty) with no intention of returning

  3. (tr) to fail (someone) in time of need

    his good humour temporarily deserted him

  4. (tr) Scots law to give up or postpone (a case or charge)

"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

desert 3 British  
/ ˈdɛzət /

noun

  1. a region that is devoid or almost devoid of vegetation, esp because of low rainfall

  2. an uncultivated uninhabited region

  3. a place which lacks some desirable feature or quality

    a cultural desert

  4. (modifier) of, relating to, or like a desert; infertile or desolate

"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

desert Scientific  
/ dĕzərt /
  1. A large, dry, barren region, usually having sandy or rocky soil and little or no vegetation. Water lost to evaporation and transpiration in a desert exceeds the amount of precipitation; most deserts average less than 25 cm (9.75 inches) of precipitation each year, concentrated in short local bursts. Deserts cover about one fifth of the Earth's surface, with the principal warm deserts located mainly along the Tropic of Cancer and the Tropic of Capricorn, where warm, rising equatorial air masses that have already lost most of their moisture descend over the subtropical regions. Cool deserts are located at higher elevations in the temperate regions, often on the lee side of a barrier mountain range where the prevailing winds drop their moisture before crossing the range.


desert More Idioms  

    More idioms and phrases containing desert


Synonym Usage

Desert, waste, wilderness refer to areas that are largely uninhabited. Desert emphasizes lack of water (though not specifically high temperature); it refers to a dry, barren, treeless region, usually sandy: a high-altitude frozen desert. Waste emphasizes lack of inhabitants and of cultivation; it is used of wild, barren land: a desolate waste. Wilderness emphasizes the difficulty of finding one's way, whether because of barrenness or of dense vegetation: a trackless wilderness.

Desert, abandon, forsake mean to leave behind persons, places, or things. Desert implies intentionally violating an oath, formal obligation, or duty: to desert campaign pledges. Abandon suggests giving up wholly and finally, whether of necessity, unwillingly, or through shirking responsibilities: to abandon a hopeless task; abandon a child. Forsake has emotional connotations, since it implies violating obligations of affection or association: to forsake a noble cause.

Desert, merit, worth refer to the quality in a person, action, or thing that entitles recognition, especially favorable recognition. Desert is the quality that entitles one to a just reward: according to her deserts. Merit is usually the excellence that entitles to praise: a person of great merit. Worth is always used in a favorable sense and signifies inherent value or goodness: The worth of your contribution is incalculable.

Closer Look

A desert is defined not by temperature but by the sparse amount of water found in a region. An area with an annual rainfall of fewer than 25 centimeters (9.75 inches) generally qualifies as a desert. In spite of the dryness, however, some animals and plants have adapted to desert life and thrive in these harsh environments. While different animals live in different types of deserts, the dominant animals of warm deserts are reptiles, including snakes and lizards, small mammals, such as ground squirrels and mice, and arthropods, such as scorpions and beetles. These animals are usually nocturnal, spending the day resting in the shade of plants or burrowed in the ground, and emerging in the evenings to hunt or eat. Warm-desert plants are mainly ground-hugging shrubs, small wooded trees, and cacti. Plant and animal life is scarcer in the cool desert, where the precipitation falls mainly as snow. Plants are generally scattered mosses and grasses that are able to survive the cold by remaining low to the ground, avoiding the wind, and animal life can include both large and small mammals, such as deer and jackrabbits, as well as a variety of raptors and other birds.

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of desert1

First recorded in 1250–1300; Middle English adjective desert, deserd, diserte “barren, unproductive, dried up (lake), deserted (city),” from Anglo-French, Old French des(s)ert “uncultivated; without inhabitants,” from Late Latin dēsertum (neuter), noun use of past participle of Latin dēserere “to abandon, forsake,” equivalent to dē- prefix meaning “from, away from, out of ” + serere “to join together (in a line)”; see origin at de-, series

Origin of desert2

First recorded in 1470–80; from Middle French déserter, from Medieval Latin dēsertāre “to desert; lay waste,” frequentative of Latin dēserere “to part company, leave, forsake,” literally “to undo the links,” equivalent to dē- prefix meaning “from, away from” + serere “to link together, entwine, interlace”; see also desert 1

Origin of desert3

First recorded in 1275–1325; Middle English noun desert, deseert, decert(e), from Old French deserte, noun use of feminine past participle of deservir “to serve devotedly”; see origin at deserve

Explanation

A desert is a very dry area of land where few plants and animals can live. If you find yourself stranded in the middle of the desert, you'll have no company except for the occasional lizard or scorpion. Desert comes from the Latin desertus, for abandoned or lying in waste. This can refer to a vast sandy area without vegetation, or any empty, lifeless expanse. As a verb, it means to leave someone or something. A soldier who runs away from the army is called a deserter. Occasionally you'll hear someone say, "He got his just deserts," which doesn't have anything to do with abandonment; it means he got what he deserved.

Keep Reading on Vocabulary.com

Vocabulary lists containing desert

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:

It is a mosaic of subcultures: fishermen in coastal towns, hipsters in Portland, hippies in Eugene, hikers in Bend, farmers in the Willamette Valley, loggers in timber towns and cowboys in Eastern Oregon’s high desert.

From The Wall Street Journal Sep. 18, 2026

There is a “trash fence,” a 4-foot-high, 9.2-mile-long orange plastic barrier, according to SF Gate, that blocks the trash from blowing away in the desert.

From Salon Sep. 11, 2026

Burning Man is an annual gathering held about 120 miles north of Reno in the Nevada desert.

From Los Angeles Times Sep. 8, 2026

However, one of the August 2026 storms stood out for its remarkable reach, spreading from the Andes across the desert toward the Pacific coast.

From Science Daily Sep. 1, 2026

Decades later, it was found by scientists, who marveled at the appearance of this perfectly preserved ocean mollusk in the middle of a desert.

From "The Long-Lost Home" by Maryrose Wood

I’ve pulled together 13 fall travel ideas here, from deserts to coast with a couple of mountain destinations mixed in.

From Los Angeles Times Sep. 8, 2026

Julian joins the Air Force out of boredom and deserts for the same reason.

From The Wall Street Journal Aug. 28, 2026

The findings come as ministers have pledged to tackle so-called "dental deserts", but dentists say the current deal is not viable.

From BBC Aug. 23, 2026

Today, many of the best places to conduct this work are deserts or Arctic landscapes.

From Science Daily Aug. 17, 2026

Yelena has passed survival tests at sea, in forests, and in deserts.

From "Women in Space" by Karen Bush Gibson

But this isn’t just a deserted patch of sand.

From MarketWatch Sep. 1, 2026

He has strained his eyes writing stories in the dark in a deserted gym.

From Los Angeles Times Aug. 23, 2026

The $100-billion dollar complex's quiet streets and deserted beaches have earned it a reputation as a "ghost city"

From BBC Aug. 11, 2026

To test the concept, Srinivasan headed to a nearly deserted artificial island about 100 miles from the equator.

From The Wall Street Journal Aug. 1, 2026

Retreating Italian troops were driven down from the mountains onto the plains as hundreds of thousands of soldiers surrendered or deserted, disappearing into the countryside.

From "The War to End All Wars: World War I" by Russell Freedman

But a major reason for voters deserting the party in past elections was inflation, an unwelcome phenomenon for households after several decades of stable or falling prices.

From Barron's Feb. 9, 2026

But the rate is half the national level for Californians under 35, and they are precisely the group that is deserting the West Coast for “cost of living” reasons.

From Los Angeles Times Feb. 18, 2025

In a mountainous village of post-war Italy, a taciturn Sicilian soldier hides out after deserting the army.

From BBC Dec. 9, 2024

But the Syrian army collapsed with surprising ease, with many troops deserting the battlefield, in the face of the HTS rebels’ onslaught.

From Slate Dec. 5, 2024

It was like deserting her, and of course she was right to be angry.

From "The Once and Future King" by T. H. White

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