1. The action of refusing to give, grant, or allow something
The withholding of information is considered unethical.
A retenção de informações é considerada antiética.
2. In finance/taxation: the deduction of taxes from wages or income before payment to the employee or recipient
Tax withholding is automatically deducted from your paycheck.
A retenção de impostos é automaticamente deduzida do seu salário.