source

American  

[sawrs, sohrs] / sɔrs, soʊrs /

noun

1. any thing or place from which something comes, arises, or is obtained; origin.

   Which foods are sources of calcium?

   Synonyms:

   originator, supplier

2. the beginning or place of origin of a stream or river.

3. a book, statement, person, etc., supplying information.

   Synonyms:

   reference, authority

4. the person or business making interest or dividend payments.

5. a manufacturer or supplier.

6. Archaic. a natural spring or fountain.

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verb (used with object)

sourced, sourcing

1. to give or trace the source for.

   The research paper was not accurately sourced.

   The statement was sourced to the secretary of state.

2. to find or acquire a source, especially a supplier, for.

   Some of the components are now sourced in Hong Kong.

verb (used without object)

sourced, sourcing

1. to contract a manufacturer or supplier.

   Many large companies are now sourcing overseas.

2. to seek information about or consider possible options, available personnel, or the like.

   a job recruiter who was merely sourcing.

source British  

/ sɔːs /

noun

1. the point or place from which something originates

2. 1. a spring that forms the starting point of a stream; headspring

   2. the area where the headwaters of a river rise

      the source of the Nile

3. a person, group, etc, that creates, issues, or originates something

   the source of a complaint

4. 1. any person, book, organization, etc, from which information, evidence, etc, is obtained

   2. ( as modifier )

      source material

5. anything, such as a story or work of art, that provides a model or inspiration for a later work

6. electronics the electrode region in a field-effect transistor from which majority carriers flow into the interelectrode conductivity channel

7. at the point of origin

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verb

1. to determine the source of a news report or story

2. to originate from

3. (tr) to establish an originator or source of (a product, piece of information, etc)

Other Word Forms

• sourceful
  adjective
• sourcefulness
  noun
• sourceless
  adjective

Etymology

Origin of source

First recorded in 1300–50; Middle English sours (noun), from Old French sors (masculine), sourse, source (feminine), noun use of past participle of sourdre, from Latin surgere “to spring up or forth”; cf. surge

Explanation

The noun source describes an origin, like the source who gave the journalist the information that broke a new story, or the place something originates, like the source of a river, or the Web site that is your source for celebrity gossip. The noun source can also refer to information obtained from documents, such as books, letters, newspapers, and journals. For example, when you write a research paper, you read, paraphrase and quote from sources. A source can also be a place where you get things, like a certain store being your source for discount sneakers or something that provides, like oranges, a good source of Vitamin C.

Example Sentences

The Ontology forms the core source of truth for the organization, and all of the services Palantir sells to customers sit atop the Ontology.

From Barron's • May 6, 2026

"But I would imagine at the source there coming down, there will be an effect on not just fish, but all aquatic insects and vertebrates and stuff."

From BBC • May 6, 2026

But search warrants have focused on the source of the grenades.

From Los Angeles Times • May 5, 2026

Trump administration officials affirmed Cole Allen shot a Secret Service officer, extinguishing doubt about the source of the gunfire.

From The Wall Street Journal • May 5, 2026

I can almost hear my heart beating as I strain to detect the source of the noise.

From "Kwame Crashes the Underworld" by Craig Kofi Farmer

Related Words

• authority
• cause
• expert
• origin