"concrete" as noun
1 - A solid mass formed by the coalescence of separate particles; a compound substance, a concretion.
2 - Specifically, a building material created by mixing cement, water, and aggregate such as gravel and sand.
3 - A term designating both a quality and the subject in which it exists; a concrete term.
"concrete" as verb
1 - (usually transitive) To cover with or encase in concrete (building material).
2 - (usually transitive) To solidify: to change from being abstract to being concrete (actual, real).
3 - To unite or coalesce into a mass or a solid body.
"concrete" as adjective
1 - Real, actual, tangible.
2 - Being or applying to actual things, not abstract qualities or categories.
3 - Particular, specific, rather than general.
