collapse

1 of 2

verb

col·​lapse kə-ˈlaps How to pronounce collapse (audio)
collapsed; collapsing

intransitive verb

1
: to fall or shrink together abruptly and completely : fall into a jumbled or flattened mass through the force of external pressure
a blood vessel that collapsed
2
: to break down completely : disintegrate
… his case had collapsed in a mass of legal wreckage …Erle Stanley Gardner
3
: to cave or fall in or give way
The bridge collapsed.
4
: to suddenly lose force, significance, effectiveness, or worth
fears that the currency may collapse
5
: to break down in vital energy, stamina, or self-control through exhaustion or disease
She came home from work and collapsed on the sofa.
especially : to fall helpless or unconscious
He collapsed on stage during the performance.
6
: to fold down into a more compact shape
a chair that collapses
a collapsing golf club that can fit into a travel bag

transitive verb

1
: to cause to collapse
buildings collapsed by an earthquake
He knelt for a long time, first watching the bay below, then collapsing the spyglass and settling his hands on his legs in a thoughtful pose.Heather Dunboine
2
: condense
collapse several stories into one

collapse

2 of 2

noun

1
a
: a breakdown in vital energy, strength, or stamina
suffered a mental collapse
b
: a state of extreme prostration and physical depression (as from circulatory failure or great loss of body fluids)
c
: an airless state of all or part of a lung originating spontaneously or induced surgically
2
: the act or action of collapsing
the cutting of many tent ropes, the collapse of the canvasRudyard Kipling
3
: a sudden failure : breakdown, ruin
the collapse of the government
4
: a sudden loss of force, value, or effect
the collapse of respect for ancient law and customL. S. B. Leakey

Examples of collapse in a Sentence

Verb The roof collapsed under a heavy load of snow. The chair he was sitting in collapsed. He collapsed on stage during the performance and had to be rushed to the hospital. She came home from work and collapsed on the sofa. The crying child ran to his mother and collapsed in her arms. The civilization collapsed for reasons that are still unknown. He warned that such measures could cause the economy to collapse. Noun The structure is in danger of collapse. She was on the verge of collapse. The country has endured civil war and economic collapse.
Recent Examples on the Web
Verb
On Wednesday, officials ordered nearby residents to evacuate over fears of yet another disaster—a tsunami, which could occur if part of the volcano collapses into the ocean, writes CNN’s Kathleen Magramo. Christian Thorsberg, Smithsonian Magazine, 19 Apr. 2024 The sequence concludes with Skyler pursuing Walt outside their home and collapsing to her knees as Walt drove off with Holly in a beat-up pickup truck. Brian Davids, The Hollywood Reporter, 19 Apr. 2024 Chatty and always sporting a cap, Mr. Rageh is from a generation born and raised after the Somali state collapsed more than three decades ago. Abdi Latif Dahir, New York Times, 19 Apr. 2024 When a University of Wisconsin-Madison pier collapsed last year, the cause seemed pretty simple: There were too many people on the structure at the time. Kelly Meyerhofer, Journal Sentinel, 19 Apr. 2024 In the first study, participants did not use PAP, or positive airway pressure, machines, which gently blow air into the airway to keep it from collapsing. Berkeley Lovelace Jr., NBC News, 17 Apr. 2024 Another body was found on Sunday, April 14 after the Francis Scott Key Bridge collapsed in Baltimore, Key Bridge Response Unified Command said in a press release. Abigail Adams, Peoplemag, 16 Apr. 2024 Of those, at least 11 deaths resulted from various types of scaffolds that collapsed, broke or malfunctioned. Ames Alexander, Charlotte Observer, 16 Apr. 2024 Nearly three weeks since Baltimore’s Francis Scott Key Bridge collapsed under the impact of a wayward cargo ship, crews are using the largest crane on the Eastern Seaboard to haul the wreckage to a nearby salvage yard. Lea Skene, Fortune, 16 Apr. 2024
Noun
The installation by the U.S. and its allies of an acting prime minister widely seen by Haitians as both incompetent and corrupt sparked a shooting rebellion by an alliance of heavily armed criminal gangs that has left the country on the verge of political, economic and civil collapse. Andres Viglucci, Miami Herald, 21 Apr. 2024 Lifeguards were on duty earlier in the day but not at the time of the collapse because of a confusion in communications. Kelly Meyerhofer, Journal Sentinel, 19 Apr. 2024 Synergy and Grace Ocean filed a court petition soon after the collapse seeking to limit their legal liability -- a routine procedure for cases litigated under U.S. maritime law. Eric Tucker, arkansasonline.com, 16 Apr. 2024 Officials with the Charlotte-Metrolina Labor Council earlier this month asked the state to apply a federal policy that temporarily protects undocumented workers so all who witnessed the collapse can safely talk to inspectors. Ames Alexander, Charlotte Observer, 16 Apr. 2024 Synergy and Grace Ocean filed a court petition soon after the collapse seeking to limit their legal liability — a routine procedure for cases litigated under U.S. maritime law. Eric Tucker, Fortune, 16 Apr. 2024 Yeah, so what do cleanup efforts look like now weeks after the collapse? Taylor Wilson, USA TODAY, 16 Apr. 2024 Crews have been working since the collapse to improve stability, safety features and drainage in the area. Grace Toohey, Los Angeles Times, 16 Apr. 2024 Two more victims remain unaccounted for and have been declared dead after the March 26 incident, when a cargo ship crashed into the Baltimore bridge, causing a near-total collapse of a bridge span in the port. Ivan Pereira, ABC News, 15 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'collapse.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Verb and Noun

Latin collapsus, past participle of collabi, from com- + labi to fall, slide — more at sleep

First Known Use

Verb

1620, in the meaning defined at transitive sense 1

Noun

1801, in the meaning defined at sense 1a

Time Traveler
The first known use of collapse was in 1620

Dictionary Entries Near collapse

Cite this Entry

“Collapse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/collapse. Accessed 25 Apr. 2024.

Kids Definition

collapse

1 of 2 verb
col·​lapse kə-ˈlaps How to pronounce collapse (audio)
collapsed; collapsing
1
: to fall or shrink together abruptly
a blood vessel that collapsed
2
: to break down completely
the opponent's resistance collapsed
3
: to cave or fall in or give way
the tunnel collapsed
4
: to suddenly lose value or effectiveness
the country's currency collapsed
5
: to break down physically or mentally because of exhaustion or disease
6
: to fold together
a chair that collapses
collapsible adjective

collapse

2 of 2 noun
: the act or an instance of collapsing : breakdown

Medical Definition

collapse

1 of 2 verb
col·​lapse kə-ˈlaps How to pronounce collapse (audio)
collapsed; collapsing

intransitive verb

1
: to fall or shrink together abruptly and completely : fall into a jumbled or flattened mass through the force of external pressure
a blood vessel that collapsed
2
: to break down in vital energy, stamina, or self-control through exhaustion or disease
especially : to fall helpless or unconscious

transitive verb

: to cause to collapse
collapsing an infected lung
collapsibility noun
collapsible adjective

collapse

2 of 2 noun
1
: a breakdown in vital energy, strength, or stamina : complete sudden enervation
the daughter's mental collapse through mounting frustrationLeslie Rees
2
: a state of extreme prostration and physical depression resulting from circulatory failure, great loss of body fluids, or heart disease and occurring terminally in diseases such as cholera, typhoid fever, and pneumonia
3
: an airless state of a lung of spontaneous origin or induced surgically see atelectasis
4
: an abnormal falling together of the walls of an organ
collapse of blood vessels

More from Merriam-Webster on collapse

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