concrete

US /ˈkɑːn.kriːt/
UK /ˈkɑːn.kriːt/
"concrete" picture
1.

a heavy, rough building material made from a mixture of broken stone or gravel, sand, cement, and water, that can be spread or poured into molds and forms a stonelike mass on hardening

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The bridge was built with reinforced concrete.
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They poured concrete for the new foundation.
1.

existing in a material or physical form; not abstract

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We need concrete evidence to prove his guilt.
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Give me a concrete example, not just theories.
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tangiblerealphysicalmaterialdefinite
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abstracttheoreticalvague
1.

cover or lay with concrete

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They decided to concrete the backyard patio.
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The old path was concreted over last summer.
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concretelyreinforced concreteconcrete mixer