Question

what meaning of concrete .​

Answer 1

Explanation:

real or definite; not only existing in the imagination

Answer 2

Answer:

existing in a material or physical form; not abstract.

a mass formed by concretion or coalescence of separate particles of matter in one body. a hard strong building material made by mixing a cementing material (such as portland cement) and a mineral aggregate (such as sand and gravel) with sufficient water to cause the cement to set and bind the entire mass.