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Concrete

/ˈkɒŋkriːt/

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

Synonyms:

The road is made of concrete.Do you have any concrete plans for the weekend?

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

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