trust fund

American  

noun

1. money, securities, property, etc., held in trust.

2. a government fund administered separately from other funds and used for a specified purpose.

   a highway trust fund.

---

trust fund British  

noun

1. money, securities, etc, held in trust

---

Etymology

Origin of trust fund

First recorded in 1860–65

Example Sentences

“That’s not what the trust fund was set up for,” Blumenfield said.

From Los Angeles Times • May 1, 2026

Trust in this trust fund is key; the trust fund ensures that Social Security can meet its obligations by holding and managing those payroll taxes.

From MarketWatch • Apr. 30, 2026

Because the trust fund will be depleted earlier than expected, policymakers need to quickly turn their attention to fixing Social Security.

From MarketWatch • Apr. 21, 2026

Blackstone went through a multiyear net withdrawal period at its giant nontraded real-estate investment trust fund, Breit.

From The Wall Street Journal • Mar. 10, 2026

He'd had this crusty old grandfather he'd never met, from Germany, who'd left his unborn grandchild a trust fund with the proviso that he be named after the old man.

From "How the García Girls Lost Their Accents" by Julia Alvarez