1. A budget or financial allocation that is discretionary and not mandatory; funds that may be spent if available but are not required
The company allocated an optional budget for employee training programs.
A empresa alocou um orçamento opcional para programas de treinamento de funcionários.
2. In project management, a budgetary category that covers non-essential expenses or contingencies
Marketing decided to use part of the optional budget for the new campaign.
O departamento de marketing decidiu usar parte do orçamento opcional para a nova campanha.