1. A tangible, specific, or real thing that can be perceived or understood clearly, as opposed to something abstract or theoretical
We need something concrete to base our decision on, not just theories.
Precisamos de algo concreto para basear nossa decisão, não apenas teorias.
2. A physical or material object; something that exists in physical form
The architect wanted something concrete to show the client before construction began.
O arquiteto queria algo concreto para mostrar ao cliente antes da construção começar.
3. Definite evidence or proof; something substantial and verifiable
Do you have something concrete to prove your allegations?
Você tem algo concreto para provar suas alegações?