1. A reliable and substantial form of collateral or guarantee, typically backed by tangible assets or financial instruments of significant value
The bank requires solid security before approving the loan.
O banco exige uma garantia sólida antes de aprovar o empréstimo.
2. In finance/legal contexts: assets or property pledged as collateral that have proven stability and low risk
Real estate is considered solid security for mortgage lending.
Imóveis são considerados uma garantia sólida para empréstimos hipotecários.