Synonyms of source

source 1 of 2

noun

ˈsȯrs 

1

as in origin

a point or place at which something is invented or provided

we were uncertain as to the source of the rumors

a source of inspiration

Synonyms & Similar Words

• origin
• fountain
• cradle
• root
• beginning
• font
• spring
• commencement
• wellspring
• fountainhead
• start
• genesis
• well
• inception
• launch
• seedbed
• threshold
• day one
• outset
• baseline
• dawn
• onset
• incipiency
• morning
• first base
• kickoff
• ground zero
• incipience
• square one
• git-go
• get-go
• nascence
• nascency

2

as in headwater

the beginning part of a stream

19th-century explorers who sought the source of the Nile

Synonyms & Similar Words

• headwater
• tributary
• headstream
• wellspring
• head
• fountainhead
• fountain
• spring
• hot spring
• geyser
• branch
• feeder
• headspring

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

• reference
• authority
• quotation
• citation
• extract
• excerpt
• footnote
• caption
• note
• cross-reference

source

2 of 2

verb

as in to reference

Synonyms & Similar Words

• reference
• document
• corroborate
• validate
• bear out
• touch (on or upon)
• specify
• refer (to)
• illustrate
• substantiate
• name
• represent
• instance
• exemplify
• cite
• advert (to)
• quote
• mention
• adduce

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

Recent Examples of source

Noun

European carmakers are trying to work out how much their prices might have to rise in response to looming U.S. import tariffs, industry sources said, fearing any first-movers could risk a backlash from U.S. President Donald Trump. —Christina Amann and Victoria Waldersee, USA Today, 29 Mar. 2025

Staff members at the U.S. Institute of Peace were informed they were terminated effective immediately on Friday, five sources familiar with the situation told CBS News. —Kathryn Watson, CBS News, 29 Mar. 2025

Verb

Pharmacists work to mitigate how many times this question must be asked, but they get caught in a cycle of sourcing scarce medications, negotiating with suppliers, and rationing doses to keep up with demand. —William Jones, USA Today, 28 Mar. 2025

That said, Tesla is expected to be among the car brands least affected by the tariffs, given that the cars are made in the U.S., and most of their parts are sourced domestically, too. —Megan Cerullo, CBS News, 27 Mar. 2025