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primary source

American  
[prahym-er-ee sawrs, sohrs] / ˈpraɪm ɛr i ˈsɔrs, ˈsoʊrs /

noun

  1. a first-hand or original account.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

However, Arm’s CPU doesn’t appear to be a direct competitor with Nvidia’s graphics-processing units, which are the primary source of revenue for the company.

From Barron's • Mar. 25, 2026

The Section 301 probes cite unfair practices, such as trade surpluses and industrial overcapacity, with China identified as a primary source of the problem.

From The Wall Street Journal • Mar. 14, 2026

"You had listened to the most primary source you could," Sherborne said.

From BBC • Mar. 3, 2026

“The magnitude, persistence, and breadth of buying activity have materially exceeded prior peaks, underscoring retail’s role as a primary source of incremental demand in early 2026,” he told clients on Wednesday.

From MarketWatch • Feb. 19, 2026

Researchers also learned that the primary source of wound infection was not air, but contact with hands, instruments, and even drops from a surgeon's mouth and nose.

From "Ambushed!" by Gail Jarrow

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