proprietary.
Of or relating to property or ownership.
Meaning & usage
Of or relating to property or ownership.
proprietary rights
Owning something; having ownership.
the proprietary class
Created or manufactured exclusively by the owner or licensee of intellectual property rights, as with a patent or trade secret.
The continuous profitability of the company is based on its many proprietary products.
Nonstandard and controlled by one particular organization.
a proprietary extension to the HTML standard for Web page structure
Privately owned.
a proprietary lake; a proprietary chapel
Possessive, jealous, or territorial.
Where this word comes from
From French propriétaire, from Latin proprietārius. By surface analysis, propriety + -ary. Compare with the Latin proprietas (“property”) and proprius (“ownership”).
A proprietor or owner.
A body of proprietors, taken collectively.
The rights of a proprietor.
A monk who had reserved goods and belongings to himself, notwithstanding his renunciation of all at the time of profession.
A company doing legitimate business while also serving as a front for espionage.
Where this word comes from
From French propriétaire, from Latin proprietārius. By surface analysis, propriety + -ary. Compare with the Latin proprietas (“property”) and proprius (“ownership”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.