Meaning of CONCRETE in English
■ adjective 'kɒŋkri:t existing in a material or physical form.
↘(of a noun) denoting a material object as opposed to an abstract quality, state, or action.
■ noun a building material made from a mixture of gravel, sand, cement, and water, forming a stone-like mass on hardening.
1》 'kɒŋkri:t cover or fix solidly with ~.
2》 kən'kri:t archaic solidify.
ME: from Fr. concret or L. concretus , past participle of concrescere 'grow together'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004