under seal

Related to under seal: contract under seal

under seal

Having an official imprint, emblem, impression, or other mark designating that something is authentic or officially approved. He bore a pass under seal showing that he had the authority to pass through these lands. You are required to provide a document under seal alongside your birth certificate when presenting yourself to be married at the registry office.
See also: seal
Farlex Dictionary of Idioms.

under seal

Having an impression or emblem attesting to a document's authenticity and reliability.
See also: seal
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • imprint (something) on(to) (someone or something)
  • imprint on
  • stamp (something) onto (someone or something)
  • stamp onto
  • high-water mark
  • sell (one) a pup
  • sell someone a pup
  • stamp (someone or something) with (something)
  • stamp with
  • bore into (someone or something)