noun, noun or participle which takes 'suru'
A formal or public promise, often used in business, fundraising, or campaign contexts. Can be used as a noun or with する to mean 'to pledge'.
彼は選挙運動で減税をプレッジした。
He pledged a tax cut during his election campaign.
会社は環境保護へのプレッジを発表した。
The company announced its pledge to environmental protection.