constituting an actual thing or instance; real:
a concrete proof of his sincerity.
pertaining to or concerned with realities or actual instances rather than abstractions; particular (opposed to general):
concrete ideas.
representing or applied to an actual substance or thing, as opposed to an abstract quality:
The words “cat,” “water,” and “teacher” are concrete, whereas the words “truth,” “excellence,” and “adulthood” are abstract.
made of concrete:
a concrete pavement.
formed by coalescence of separate particles into a mass; united in a coagulated, condensed, or solid mass or state.
an artificial, stonelike material used for various structural purposes, made by mixing cement and various aggregates, as sand, pebbles, gravel, or shale, with water and allowing the mixture to harden.
Compare reinforced concrete.
any of various other artificial building or paving materials, as those containing tar.
a concrete idea or term; a word or notion having an actual or existent thing or instance as its referent.
a mass formed by coalescence or concretion of particles of matter.
to treat or lay with concrete:
to concrete a sidewalk.
to form into a mass by coalescence of particles; render solid.
to make real, tangible, or particular.
to coalesce into a mass; become solid; harden.
to use or apply concrete.
set / cast in concrete, to put (something) in final form; finalize so as to prevent change or reversal:
The basic agreement sets in concrete certain policies.
Contemporary Examples

The ceiling and roof were made of concrete, not wood and sheet metal as the contract specified.
U.S.-Built Schools in Afghanistan Pose ‘Potentially Life-Threatening Risks’ June 25, 2013

I took a cab to a stadium outside the city, bought a ticket, and sat in the concrete bleachers.
Why Americans Should Love the World Cup Sean Wilsey June 11, 2014

Those excuses would do little to dissuade those enforcing the statute, if the U.S. had concrete proof of the suspected killings.
Afghan Army Killings Threaten U.S. Aid Kimberly Dozier September 1, 2014

And without a concrete way to measure the incidence of domestic violence, it is purely observational.
Another Hazy Week For Weed Abby Haglage August 31, 2014

The body parts were discovered near a concrete ramp frequented by skateboarders.
Human Head, Hands Found Near Hollywood Sign Christine Pelisek January 18, 2012

Historical Examples

I have taken this case of the schools as a case casual but concrete.
Appreciations and Criticisms of the Works of Charles Dickens G. K. Chesterton

Of late years large numbers of “concrete” or “cement” houses have been built.
Diggers in the Earth Eva March Tappan

The barracks of the men were of brick and concrete, and were built with no less regard for appearance than utility.
To Kiel in the ‘Hercules’ Lewis R. Freeman

The second substance needed in concrete is broken stone or gravel.
Diggers in the Earth Eva March Tappan

To the companies the proposition had come as a concrete business proffer and they had rejected it.
The New York Subway Anonymous


a construction material made of a mixture of cement, sand, stone, and water that hardens to a stonelike mass
(as modifier): a concrete slab

(physics) a rigid mass formed by the coalescence of separate particles
relating to a particular instance or object; specific as opposed to general: a concrete example

relating to or characteristic of things capable of being perceived by the senses, as opposed to abstractions
(as noun): the concrete

formed by the coalescence of particles; condensed; solid
(transitive) to construct in or cover with concrete
(kənˈkriːt). to become or cause to become solid; coalesce

late 14c., “actual, solid,” from Latin concretus “condensed, hardened, thick, hard, stiff, curdled, congealed, clotted,” figuratively “thick; dim,” literally “grown together;” past participle of concrescere “to grow together,” from com- “together” (see com-) + crescere “to grow” (see crescent). A logicians’ term until meaning began to expand 1600s. Noun sense of “building material made from cement, etc.” is first recorded 1834.

concrete con·crete (kŏn-krēt’, kŏn’krēt’)

Relating to an actual, specific thing or instance; particular.

Existing in reality or in real experience; perceptible by the senses; real.

Relating to a material thing or group of things as opposed to an abstraction.

Formed by the coalescence of separate particles or parts into one mass; solid.


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