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Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
nonproprietary is an adjective meaning "not protected by trademark or patent or copyright". It carries one recorded sense.
not protected by trademark or patent or copyright
“nonproprietary products are in the public domain and anyone can produce or distribute them”
Definitions, synonyms and semantic relations for nonproprietary come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.