bottom-up
Americanadjective
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of, relating to, or originating with the common people, nonprofessionals, or the lower ranks of an organization.
The five-day workweek was a bottom-up movement that business leaders and politicians finally supported.
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organized or proceeding from smaller, more detailed units to the larger, more general structure.
His bottom-up approach to research involves immersing himself in communities to better understand the lives of local entrepreneurs.
adjective
Etymology
Origin of bottom-up
First recorded in 1930–35 as an adjective and in 1890–95 as an adverb, both deriving from the phrase “from the bottom up ”
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.
"Planets form from the bottom up, by sticking small-scale planetesimals together. But forming a planet at the edge of the instability zone would be like trying to stick snowflakes together in a hurricane," he said.
From Science Daily • Apr. 19, 2026
"We've had a 'no see, no hear' policy for about 10 years and we decided, rather than change the whole school, that we would try from the bottom up", head teacher Leanne Symonds says.
From BBC • Jan. 30, 2026
The U.S. financial system is strongest when trust naturally flows from the bottom up.
From Barron's • Dec. 18, 2025
If the leaders will not lead, then it is up to the people to lead from the bottom up.
From Salon • Feb. 25, 2025
Denna gave the remains of her apple a speculative look, then began to eat it from the bottom up.
From "The Name of the Wind" by Patrick Rothfuss
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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.