donor

noun

do·​nor ˈdō-nər 

-ˌnȯr

1

: one that gives, donates, or presents something

2

: one used as a source of biological material (such as blood or an organ)

3

a

: a compound capable of giving up a part (such as an atom, chemical group, or subatomic particle) for combination with an acceptor

b

: an impurity added to a semiconductor to increase the number of mobile electrons

Synonyms of donor

• donator
• benefactor
• contributor
• patron

Examples of donor in a Sentence

The money was raised from individual donors.

She is one of the charity's major donors.

Recent Examples on the Web

But there's a lower risk of having a reaction because your body recognizes your own blood, and there's no risk of contracting infectious disease from a different donor. —Arkansas Online, 21 Mar. 2026

This story was produced with financial support from Trish and Dan Bell and donors in South Florida’s Jewish and Muslim communities, including Khalid and Diana Mirza and the Mohsin and Fauzia Jaffer Foundation, in partnership with Journalism Funding Partners. —Lauren Costantino, Miami Herald, 21 Mar. 2026

Some donors and allies have begun exploring the groundwork for a possible Rubio presidential bid after the 2026 midterm elections, according to multiple Republicans familiar with the discussions. —Samantha-Jo Roth, The Washington Examiner, 20 Mar. 2026

Her complaint detailed inappropriate comments made in front of USC donors and staff, as well as insensitive or discriminatory remarks made in her presence. —Ryan Kartje, Los Angeles Times, 20 Mar. 2026

Word History

Etymology

Middle English donoure, from Anglo-French doneur, from Latin donator, from donare

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing donor

• donor card
• sperm donor
• universal donor

Rhymes for donor

• kroner
• kronor
• loner
• owner
• stoner
• toner
• homeowner
• landowner
• shipowner

Kids Definition

donor

noun

do·​nor ˈdō-nər 

-ˌnȯr

1

: one that donates

2

: one used as a source of bodily material or parts

a blood donor

a kidney donor

Medical Definition

donor

noun

do·​nor ˈdō-nər  -ˌnȯ(ə)r 

1

: one used as a source of biological material (as blood or an organ)

2

: a compound capable of giving up a part (as an atom, chemical group, or elementary particle) for combination with an acceptor

Legal Definition

donor

noun

do·​nor ˈdō-nər, -ˌnȯr 

: one that gives, donates, grants, or confers something

specifically : settlor