Collocations for donor - noun

blood, bone-marrow, egg, kidney, organ, sperm, etc.
potential, prospective
compatible, suitable
The operation will go ahead as soon as a suitable donor can be found.

healthy
living

donate sth, give sth
Donors give blood twice a year.

blood, egg, organ, sperm, etc.
Donor organs are constantly required for transplant operations.

card
He carried a donor card.

wealthy
big, generous, large, major
anonymous
The charity received £50 000 from an anonymous donor.

private
corporate
aid
Japan has been one of the country's biggest aid donors.

campaign (esp. AmE)

give sth, make a donation, pledge sth
Donors pledged a total of $1 000 million in relief aid.

country, government
loans from rich donor countries to developing nations