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

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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
Trump did not explicitly demand an end to the shipments, the sources said, but the exchange was pointed enough to intensify debate inside Mexico City. Antonio María Delgado, Miami Herald, 24 Jan. 2026 Still, the interplay isn’t the source of The Return of the Durutti Column’s magic, as wonderful as those moments can be. Brad Shoup, Pitchfork, 24 Jan. 2026
Verb
Instead of losing the sale, the agent could interact with other retailers’ agents to source the item, complete the transaction, and fulfill the order — creating a frictionless and endless shopping experience that puts the shopper’s needs first. Matt Renner, Fortune, 27 Oct. 2025 Designers share tips on how to source a winning piece. Amanda Sims, Architectural Digest, 21 Oct. 2025 See All Example Sentences for source
Recent Examples of Synonyms for source
Noun
  • Maybe another working definition of folklore is a narrative with relatively wide acceptance but no clear origin.
    Literary Hub, Literary Hub, 28 Jan. 2026
  • Yet the primary data required for compliance—fiber origin, material composition, chemical inputs—are generated and held upstream by suppliers and processors.
    Alexandra Harrell, Sourcing Journal, 28 Jan. 2026
Noun
  • Record-low snowpack in the Colorado River headwaters in central and northern Colorado suggests nature is unlikely to give negotiators breathing room.
    Elise Schmelzer, Denver Post, 15 Jan. 2026
  • Because of the mine’s location — at the headwaters of the BWCA — any potential pollution or acid mine drainage would likely flow into the wilderness area, Voyageurs National Park, and Canada’s Quetico Provincial Park.
    Alex Robinson, Outdoor Life, 15 Jan. 2026
Noun
  • Cinematographers and directors thinking about references can effectively comb through their catalogs, while location scouts and casting directors can cast a wide net to track down a specific person or place.
    Caitlin White, Variety, 23 Jan. 2026
  • Define repeatable reference architectures for your small data centers.
    Chhandomay Mandal, Forbes.com, 23 Jan. 2026
Noun
  • But my next words slipped soundlessly to the ground before the yellow vinyl material, like the final sprays of a park fountain at closing time.
    Literary Hub, Literary Hub, 27 Jan. 2026
  • The Cotton Exchange has fanciful touches on the exterior, including faux columns and balustrades, and a fountain at the front of the building, dominated by a gryphon, a mythic creature that is part lion, part eagle.
    Jim Halley, AJC.com, 27 Jan. 2026
Noun
  • Taken together, the list reads like a snapshot of a category that’s evolving quickly while still holding onto its roots.
    Emily Price, Forbes.com, 29 Jan. 2026
  • According to Natacha Bonjout, French pharmacist and founder of Bonjout Beauty, the ingredient is based on plant extract Anemarrhena asphodeloides root, which is rich in sarsasapogenin to stimulate fat cells.
    Audrey Noble, Vogue, 29 Jan. 2026
Noun
  • To stop each dog from trying to reach the toy, the owners sat at a dining table or on the floor while the dog was put behind a child safety gate, or was in a dog cradle or bed.
    Amarachi Orie, CNN Money, 8 Jan. 2026
  • The wise men made a pilgrimage from the east to worship at the cradle of Christ; and the shepherds journeyed from field to town in search of Jesus, the savior of the world.
    Stephanie Petit, PEOPLE, 25 Dec. 2025
Noun
  • The beginning of the year is often the time for contemplation and action.
    Heather L. Locus, Forbes.com, 24 Jan. 2026
  • Near the beginning of the site’s trail, a replica village contains several ‘ewaas, which are traditional Kumeyaay homes.
    Julie Gallant, San Diego Union-Tribune, 23 Jan. 2026

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Cite this Entry

“Source.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/source. Accessed 30 Jan. 2026.

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