You might find some of these definitions helpful.
Holdings of economic value by a foundation or charity – such as cash, stocks, bonds, buildings or other property, and accounts receivable.
A trust is an arrangement whereby a person or persons (the trustees) is made the nominal owner of property for the benefit of another person or group of people (the beneficiaries).
Development trusts are organisations that are engaged in the economic, environmental and social regeneration of a defined area or community.
An expendable endowment fund is a fund that must be invested to produce income.
The percentage of assets a foundation distributes for charitable purposes in a year. There is no minimum pay-out requirement in the UK.
Permanent endowment is property of the charity (including land, buildings, cash or investments) which the trustees may not spend as if it were income.