What does "nondisclosure" mean?

An act or policy of not disclosing.

What is a synonym for "nondisclosure"?

Common synonyms include: confidentiality, secrecy.

Pronounced //ˌnɒndɪsˈkləʊʒə(ɹ)//.

/ˌnɒndɪsˈkləʊʒə(ɹ)/ noun

noun ·Rare ·Advanced level

Noun

1
An act or policy of not disclosing. countable, uncountable
"Recently, one early GPT-4 tester — who was bound by a nondisclosure agreement with OpenAI but gossiped a little anyway — told me that testing GPT-4 had caused the person to have an “existential crisis,” because it revealed how powerful and creative the A.I. was compared with the tester’s own puny brain."

"They told Tom that he had to sign a nondisclosure agreement."

From non- + disclosure.