be secret

Examples (10)

• The location of the new headquarters is secret.
• For decades, the government project was secret from the public.
• The details of the peace treaty will be secret until the official announcement.
• Her true identity has always been secret from her colleagues.
• It's crucial that this information be secret to ensure national security.
• The recipe for the famous sauce is secret, known only to a few.
• Is the date of the surprise party still secret, or did someone spill the beans?
• The documents were highly secret, accessible only to top officials.
• He hoped his past would be secret forever, but fate had other plans.
• The exact cost of the project won't be secret for much longer, as an audit is underway.