# proprietary

> English word · Adjective · IPA /pɹəˈpɹaɪ.ə.tə.ɹi/ · frequency rank #11,764

## Definitions
1. Of or relating to property or ownership.
2. Owning something; having ownership.
3. Created or manufactured exclusively by the owner or licensee of intellectual property rights, as with a patent or trade secret.
4. Nonstandard and controlled by one particular organization.
5. Privately owned.
6. Possessive, jealous, or territorial.

## Etymology
From French propriétaire, from Latin proprietārius. By surface analysis, propriety + -ary. Compare with the Latin proprietas (“property”) and proprius (“ownership”).

## Easily confused with
- **propriety** (https://plainspell.com/en/vs/proprietary-vs-propriety)
- **proprietor** (https://plainspell.com/en/vs/proprietary-vs-proprietor)

## Common misspellings (17)
`porprietary`, `pproprietary`, `propiretary`, `propprietary`, `propreitary`, `proprieatry`, `proprietarry`, `proprietaryy`, `proprietayr`, `proprietray`, `propriettary`, `propriteary`, `proprrietary`, `prorpietary`, `prporietary`, `prroprietary`, `rpoprietary`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/proprietary