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Concrete

/ˈkɒŋkriːt/

A hard building material made by mixing cement, sand, gravel, and water, or something definite and tangible

Synonyms:

A mute, concrete sky.His abnormal power of vision made abstractions take on concrete form.The bridge was made of reinforced concrete.

from Latin concretus, meaning hardened, past participle of concrescere, meaning to grow together, composed of con- (together) + crescere (to grow)

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