breakdown
Americannoun
-
a breaking down, wearing out, or sudden loss of ability to function efficiently, as of a machine.
-
a loss of mental or physical health; collapse.
-
an analysis or classification of something; division into parts, categories, processes, etc.
-
Chemistry.
-
Electricity. an electric discharge passing through faulty insulation or other material used to separate circuits or passing between electrodes in a vacuum or gas-filled tube.
-
a noisy, lively folk dance.
Etymology
Origin of breakdown
First recorded in 1825–35; noun use of verb phrase break down
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.
She notes that no detailed breakdown of the numbers has been provided by the government or NHS England.
From BBC • Apr. 13, 2026
West Texas Intermediate and Brent crude both climbed above $100 a barrel on Monday after a breakdown in talks between the U.S. and Iran over the weekend.
From The Wall Street Journal • Apr. 13, 2026
Researchers often struggle to distinguish these rare signaling molecules from the many inactive fragments created during normal protein breakdown.
From Science Daily • Apr. 12, 2026
Vance blamed the breakdown on Iran’s lack of commitment over seeking a nuclear weapon or the tools to allow it to build one quickly.
From MarketWatch • Apr. 12, 2026
Nothing and no one— not even the president of the United States—would thwart * James Hood left the university after only two months, wanting to avoid a breakdown.
From "While the World Watched: A Birmingham Bombing Survivor Comes of Age during the Civil Rights Movement" by Carolyn Maull McKinstry
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.