mass 1 of 3

Definition of massnext
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as in body
a distinct and separate portion of matter a mass of leaves in a corner of the yard

Synonyms & Similar Words

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as in majority
the largest part or quantity of something believes that the great mass of voters are in the political center and consider themselves neither conservative nor liberal

Synonyms & Similar Words

Antonyms & Near Antonyms

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as in throng
a great number of persons or creatures massed together a huge mass of people had gathered in the park to protest the government's latest policy

Synonyms & Similar Words

mass

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adjective

mass

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verb

as in to accumulate
to gradually form into a layer, pile, or mass clouds massing on the western side of the mountain range

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word mass different from other nouns like it?

The words bulk and volume are common synonyms of mass. While all three words mean "the aggregate that forms a body or unit," mass suggests an aggregate made by piling together things of the same kind.

a mass of boulders

Where would bulk be a reasonable alternative to mass?

While the synonyms bulk and mass are close in meaning, bulk implies an aggregate that is impressively large, heavy, or numerous.

the darkened bulk of the skyscrapers

In what contexts can volume take the place of mass?

The words volume and mass are synonyms, but do differ in nuance. Specifically, volume applies to an aggregate without shape or outline and capable of flowing or fluctuating.

a tremendous volume of water

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of mass
Noun
These winds of gaseous metals, including iron and calcium, were mapped in three-dimensions, marking the first time astronomers have measured the internal gas motions of a disk orbiting a secondary object such as a planet or low-mass star. Robert Lea, Space.com, 23 Jan. 2026 By reducing that protein, Wave believes the drug can increase fat loss, particularly harmful visceral fat, while preserving lean muscle mass. Annika Kim Constantino, CNBC, 23 Jan. 2026
Adjective
Demonstrations sparked in late December by anger over economic hardship exploded into mass protests against Iran's Islamic rulers. Olivia Young, CBS News, 23 Jan. 2026 The mass execution of prisoners had been one of his red lines for military force — the other being the killing of peaceful demonstrators. Jon Gambrell, Los Angeles Times, 23 Jan. 2026
Verb
What can mass atrocities teach us about it? The New Yorker, New Yorker, 1 Dec. 2025 Plants also look stunning when massed in larger borders and foundations, or planted as a colorful low hedge. Kim Toscano, Southern Living, 25 Nov. 2025 See All Example Sentences for mass
Recent Examples of Synonyms for mass
Noun
  • And there’s the rub, because in reality nobody outside is actually or substantially helping defend the populace against the regime’s onslaught.
    Melik Kaylan, Forbes.com, 22 Jan. 2026
  • Our populace is broadly wealthy.
    Marc Novicoff, The Atlantic, 21 Jan. 2026
Noun
  • Straining the body while lifting heavy loads, during which most people unknowingly hold their breath, increases heart rate and blood pressure.
    Greta Cross, USA Today, 21 Jan. 2026
  • The county, too, is already grappling with how to ensure the loads are clean of contaminants like paint and plastic.
    Ashley Miznazi, Miami Herald, 21 Jan. 2026
Noun
  • Together, the three systems enable continuous, adaptive whole-body autonomy — allowing humanoid robots to walk, carry, reach, and recover in real time.
    Jijo Malayil, Interesting Engineering, 28 Jan. 2026
  • It’s designed to be biocompatible—not harmful to living tissue—though, and to stay in the body for as long as a decade and be reversible at any time with a sodium bicarbonate injection.
    Ana Castelain, Bloomberg, 28 Jan. 2026
Noun
  • Framed by a light-weight carbon fiber and magnesium chassis, the Audeze LCD-5s have glossy tortoiseshell acetate earcup rings and subtle copper accents.
    Mark Sparrow, Forbes.com, 22 Jan. 2026
  • Ice accumulation poses the biggest threat to power lines and trees, with even a thin layer adding significant weight—up to 500 pounds per half-inch on power lines.
    S.E. Jenkins, CBS News, 22 Jan. 2026
Noun
  • According to the report, internal Buss family disputes led to the majority stake of the franchise being sold to Mark Walter last year.
    Chantz Martin, FOXNews.com, 24 Jan. 2026
  • The vast majority of students (86%) report using AI during the school year, according to Education Week.
    Abby McCloskey, Boston Herald, 24 Jan. 2026
Noun
  • Including, apparently, underappreciating LeBron James, who stood before the usual throng of reporters after Thursday’s loss addressing the scuttlebutt gumming up the works this time.
    Mirjam Swanson, Oc Register, 23 Jan. 2026
  • Editor’s Pick A Massacre in Mashhad In early January, after throngs of civilians filled the streets to protest the Iranian regime, internet service was cut.
    Erin Neil, New Yorker, 22 Jan. 2026
Adjective
  • Nothing wrong with a little fantasy, but this year’s astrology asks us to stop romanticizing potential and start paying attention to what feels genuine, reciprocal and enduring.
    Valerie Mesa, PEOPLE, 7 Jan. 2026
  • But no one was prepared for the kind of reciprocal tariffs that were announced on April 2.
    Vicki M. Young, Footwear News, 29 Dec. 2025
Verb
  • Central bank buying remains a cornerstone, with emerging market institutions, particularly in the East, continuing to accumulate reserves.
    Sean Lee, Forbes.com, 27 Jan. 2026
  • Across some of the most productive farmland in the United States, a nutrient called phosphorus has been accumulating in the soil for decades, at levels far beyond what crops actually require.
    Dinesh Phuyal, The Conversation, 26 Jan. 2026

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Cite this Entry

“Mass.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mass. Accessed 28 Jan. 2026.

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