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Definitions

proprietary

[pruh-prahy-i-ter-ee] / prəˈpraɪ ɪˌtɛr i /




NOUN
patent medicine
Synonyms






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.

They highlight companies that operate as “systems of record” for their clients, with years of proprietary data underpinning daily operations, as also well-protected from AI disruption.

From MarketWatch • Apr. 28, 2026

This has been partly driven by DeepSeek's decision to make its systems open source, with their inner workings public -- in contrast to the proprietary models sold by OpenAI and other Western rivals.

From Barron's • Apr. 24, 2026

David Bevvino-Berv, a Mercor contractor who previously worked at Goldman Sachs, alleges in the same suit that he saw financial models and prompts that he suspected came from workers sharing proprietary information from other companies.

From The Wall Street Journal • Apr. 23, 2026

In the memo, Kratsios said the aim was to "systematically undermine American research and development and access proprietary information".

From BBC • Apr. 23, 2026

She came in with such a proprietary haste and looked around so possessively at the furniture that I wondered if she lived here.

From " The Great Gatsby" by F. Scott Fitzgerald




Vocabulary lists containing proprietary