source 1 of 2

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

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
Triumph the Insult Comic Dog — in a dinner that typically generates debate about whether the relationship between journalists and their sources should include socializing together and putting aside sometimes adversarial relationships. Collin Binkley, Chicago Tribune, 26 Apr. 2026 April 25, 2026 Less than a week after making his major-league debut on April 3, the shortstop signed a team-record nine-year extension that league sources confirmed to The Athletic is for $140 million and could be worth up to $150 million with performance escalators. The Athletic Staff, New York Times, 25 Apr. 2026
Verb
Chamberlain, 24, who recently partnered with eBay — one of her favorite platforms to source secondhand pieces on — stopped by the Vogue Vinage Market on Saturday, March 28, and dished on her big screen debut. Tabitha Parent, PEOPLE, 1 Apr. 2026 Cut to Taylor Swift’s engagement announcement, however, and everyone began asking their jewelers to source them this vintage, old mine diamond for their own proposals. Shelby Wax, Vogue, 27 Mar. 2026 See All Example Sentences for source
Recent Examples of Synonyms for source
Noun
  • The horror film, which is directed by James Watkins, will track the origins of the shape-shifting villain, played by Tom Rhys Harries.
    Giana Levy, Variety, 22 Apr. 2026
  • That entity’s origins have something to do with the Church located in the repressed, religious suburb Naim’s (Bird) just moved to with his mother, played by the brilliant Aussie actress Mia Wasikowska.
    Ryan Lattanzio, IndieWire, 22 Apr. 2026
Noun
  • Already primed for catastrophe, townspeople’s discovery that developers had quietly targeted Acton for multiple battery projects stoked fears of industrial blight, fire and contamination of residential water wells and the nearby headwaters of Southern California’s last free-flowing river.
    Bloomberg, Oc Register, 23 Apr. 2026
  • That’s less than half the typical spring flows during planting season, due to the low snowpack in the mountains west of Leadville above the headwaters of the Arkansas River.
    Bruce Finley, Denver Post, 19 Apr. 2026
Noun
  • The freedom of movement remark was likely in reference to Israel's military occupation of a buffer zone across southern Lebanon.
    CBS News, CBS News, 24 Apr. 2026
  • For reference, roughly 60 percent of global textile production relies on polyester and other synthetic fibers.
    Alexandra Harrell, Footwear News, 24 Apr. 2026
Noun
  • At a premiere so big you could get lost, a few VIPs had access to a private location on the other side of a white curtain located behind the fountain, near the Met Opera.
    Chris Murphy, Vanity Fair, 21 Apr. 2026
  • The chain also offers a Classic Luxe Box meal for $5, which includes a Beefy 5-Layer Burrito, Crunchy Taco, Cinnamon Twists and a medium fountain drink.
    Kate Perez, USA Today, 17 Apr. 2026
Noun
  • Punch drainage holes in the bottom to keep roots healthy, then hang them on a fence or mount them on a board for a compact, vertical herb garden.
    Lauren Jarvis-Gibson, Kansas City Star, 23 Apr. 2026
  • Besides being more manageable logistically, this style calls back to Healy’s fine-dining roots — think of a chef curating an ever-changing tasting menu — and also just speaks to Healy’s own personal preference.
    Jared Kaufman, Twin Cities, 23 Apr. 2026
Noun
  • For audiences expecting a cradle-to-grave reckoning, that cutoff can feel abrupt.
    Clayton Davis, Variety, 25 Apr. 2026
  • Still, among the more than 100 billion people who have walked the Earth in human history, the Artemis II astronauts have ventured farther from the cradle than anyone else.
    Stephen Clark, ArsTechnica, 25 Apr. 2026
Noun
  • His campaign, however, raised just over $1 million since the beginning of the year — placing him sixth in the fundraising race among the eight leading candidates.
    Grace Hase, Mercury News, 25 Apr. 2026
  • Meanwhile, today is the beginning of a six-year window that will impact your private world.
    Georgia Nicols, Denver Post, 25 Apr. 2026

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Cite this Entry

“Source.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/source. Accessed 28 Apr. 2026.

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