Definition of sourcenext
1
2
as in headwater
the beginning part of a stream 19th-century explorers who sought the source of the Nile

Synonyms & Similar Words

3
as in reference
something mentioned in a text as providing related and especially supporting information the professor asked the students to have at least five different sources for their papers

Synonyms & Similar Words

source

2 of 2

verb

Synonym Chooser

How is the word source distinct from other similar nouns?

Some common synonyms of source are inception, origin, and root. While all these words mean "the point at which something begins its course or existence," source applies more often to the point where something springs into being.

the source of the Nile
the source of recurrent trouble

When is inception a more appropriate choice than source?

While in some cases nearly identical to source, inception stresses the beginning of something without implying causes.

the business has been a success since its inception

When is it sensible to use origin instead of source?

The words origin and source are synonyms, but do differ in nuance. Specifically, origin applies to the things or persons from which something is ultimately derived and often to the causes operating before the thing itself comes into being.

an investigation into the origin of baseball

When can root be used instead of source?

While the synonyms root and source are close in meaning, root suggests a first, ultimate, or fundamental source often not easily discerned.

the real root of the violence

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of source
Noun
President Claudia Sheinbaum wants renewable sources to grow from 24% of total power today to 38% by 2030. Ian Dexter Palmer, Forbes.com, 11 Aug. 2026 At the same time, manufacturers are shifting away from fossil fuels by testing alternative energy sources such as hydrogen blends. Mrigakshi Dixit, Interesting Engineering, 11 Aug. 2026
Verb
Oftentimes, the winning group will source investors from the groups that lost the bidding war. Eben Novy-Williams, Sportico.com, 14 July 2026 Arrow Electronics helped the company source the right components and improve the design for the glasses. Ashley Portillo, CBS News, 13 July 2026 See All Example Sentences for source
Recent Examples of Synonyms for source
Noun
  • However, the notion of the emperor’s divine origins strengthened during the Meiji era, when the concept of State Shinto arose.
    ABC News, ABC News, 14 Aug. 2026
  • Experts suspect the hackers are from China, but neither Taiwan, nor Dream would confirm the origin of the July attacks.
    John Liu, CNN Money, 13 Aug. 2026
Noun
  • The headwaters of this 1,400-mile long artery are in the Rocky Mountains, fed by melting snowpack.
    Laura Paddison, CNN Money, 22 July 2026
  • Following an exceedingly warm year that has left the Colorado River’s headwaters in the Rocky Mountains largely snowless, Lake Mead is nearing a record-low level.
    Lila Seidman, Los Angeles Times, 16 July 2026
Noun
  • Able to cite chapter and verse from the Mayo Clinic reference guide and deeply research any disease, Sarah is also an ace at hands-on treatment.
    Allan Ripp, Chicago Tribune, 14 Aug. 2026
  • The irony, of course, is that this very haphazardness is orchestrated by Dante, who is putting all the references together with intention — the intention of creating the illusion of no intention, of chaos.
    Jim Hemphill, IndieWire, 13 Aug. 2026
Noun
  • Birds chirp from atop the towering oak trees, and the peacefully running fountains set the tone for a serenity that'll carry through your weekend.
    Condé Nast, Condé Nast Traveler, 15 Aug. 2026
  • The Interior Department on Thursday said vandals were responsible for bubbles filling the National World War II Memorial fountain on the National Mall.
    Claire Carter, The Washington Examiner, 13 Aug. 2026
Noun
  • That fire makes for a potent combination with her swimming roots.
    Peter Baugh, New York Times, 15 Aug. 2026
  • The materials used can vary widely, including roots, herbs, crystals, stones, coins, cloth, ceramic sherds, pins, powders, and the body parts of animals.
    Encyclopedia Britannica, Encyclopedia Britannica, 14 Aug. 2026
Noun
  • The duo — pals from boarding school and later Harvard — wanted to write a movie about Bourdain, but didn’t want a cradle to grave story.
    Aaron Couch, HollywoodReporter, 10 Aug. 2026
  • That motor sits on a double cradle matrix frame made from tubular steel.
    New Atlas, New Atlas, 8 Aug. 2026
Noun
  • Unlike 12 years ago, predation isn’t centred on a minority; 11 different Premier League clubs have lost players to the ‘Big Six’ since the beginning of last summer.
    Chris Weatherspoon, New York Times, 12 Aug. 2026
  • At the beginning of the year, some volunteers within Coppell ISD went door-to-door to recruit and keep students in public education.
    Lacey Beasley, CBS News, 11 Aug. 2026

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Cite this Entry

“Source.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/source. Accessed 18 Aug. 2026.

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