1. A first or preliminary commitment or promise to give money, support, or resources to a cause, organization, or project
The donor made an initial pledge of $10,000 to the charity.
O doador fez uma promessa inicial de $10.000 para a instituição de caridade.
2. In crowdfunding or fundraising contexts, the first commitment made by a supporter
Her initial pledge to the Kickstarter campaign was $50.
Sua promessa inicial para a campanha Kickstarter foi de $50.