source 1 of 2

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

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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
James Horncastle Napoli are expected to use the final fortnight of the transfer window to source cover for Romelu Lukaku. James McNicholas, New York Times, 19 Aug. 2025 This would benefit sellers who source or manufacture goods in Vietnam. Glenn Taylor, Sourcing Journal, 15 Aug. 2025
Verb
Of course, that is far from an inside source. Evan Massey, MSNBC Newsweek, 3 Sep. 2025 While most school funding comes from state and local sources, about 8% of funding for Wisconsin schools comes from the federal government, according to state data. Rory Linnane, jsonline.com, 3 Sep. 2025 See All Example Sentences for source
Recent Examples of Synonyms for source
Noun
  • And because of its higher-level academic origins, the majority of voters on either side of its function would likely struggle to define it.
    John Scott Lewinski, The Washington Examiner, 5 Sep. 2025
  • The missions will each focus on different effects of the solar wind and space weather, from their origins at the Sun to their farthest reaches billions of miles away at the edge of our Solar System.
    Eric Berger, ArsTechnica, 5 Sep. 2025
Noun
  • Enjoy hiking trails with scenic overlooks and opportunities for paddling ⛵ and fishing near the river’s headwaters.
    Melissa Oyler, Charlotte Observer, 5 Sep. 2025
  • Ashia Wilson, a member of the Klamath Tribes who lives at the river’s headwaters, said that the week before the paddlers reached the mouth Upper Klamath Lake, the home to the endemic c’waam and koptu fish, is now too toxic to touch.
    Debra Utacia Krol, USA Today, 2 Sep. 2025
Noun
  • For reference, Prater is six years older than Bills offensive coordinator Joe Brady.
    Joe Buscaglia, New York Times, 8 Sep. 2025
  • The adults never quite understood the reference.
    Karen Billing, San Diego Union-Tribune, 7 Sep. 2025
Noun
  • Kīlauea on Hawaii resumed erupting on Tuesday, shooting lava fountains up to 500 feet into the air for over 13 hours.
    Daniel Orton, MSNBC Newsweek, 3 Sep. 2025
  • Don’t miss neighboring Champ de Mars’s playgrounds, pedal cars, and antique carousel, or the grand fountains and sweeping tower views of the Trocadéro gardens across the Seine.
    Elissa Garay, AFAR Media, 3 Sep. 2025
Noun
  • However, looking deep into these swirling cradles of planet formation has always been tricky.
    Rupendra Brahambhatt, Interesting Engineering, 30 Aug. 2025
  • That success reshaped global conservation practice and earned the park its reputation as the cradle of rhino conservation.
    Sarah Kingdom, Forbes.com, 28 Aug. 2025
Noun
  • For example, most types of turfgrass have short roots, and soil samples from lawns only need to be dug to a depth of 4 inches.
    Lauren Landers, Better Homes & Gardens, 7 Sep. 2025
  • The roots of my family tree are firmly established in the soil of Great Britain.
    Elizabeth Bass Parman, PEOPLE, 7 Sep. 2025
Noun
  • The bill replaces the state’s once-a-year test with three shorter exams, to be given at the beginning, middle and end of the school year.
    Silas Allen, Fort Worth Star-Telegram, 4 Sep. 2025
  • From the very beginning of launching her brand, Mutayo set her sights on the world stage.
    Ugonnaora Owoh, Essence, 4 Sep. 2025
Noun
  • That wasn’t quite right (though ARABESQUE is a font, actually).
    Erik Kain, Forbes.com, 6 Sep. 2025
  • Those who defended them said basically the same thing, but in a different font.
    Bethy Squires, Vulture, 5 Sep. 2025

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Cite this Entry

“Source.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/source. Accessed 9 Sep. 2025.

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