primary source

American  

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

noun

1. a first-hand or original account.

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Example Sentences

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

The two primary sources of worries come from AI start-ups OpenAI and Anthropic, especially the latter.

From Barron's

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

From BBC

Altogether, tipping in the U.S. generates more than $50 billion annually and serves as a primary source of income for millions of workers.

From Science Daily

Objective primary sources about the sisters, and their spirits, are in such short supply as to be essentially nonexistent.

From Literature