top secret

Wikipedia has articles on: Top secret (disambiguation)

Wikipedia has an article on: Classified information

Wikipedia

top secret (not comparable)

(military) Information classified at the highest level of sensitivity by a government, based on an assessment that it would cause exceptionally grave damage to national security if disclosed.

NSA's report on the Liberty incident was originally classified top secret.
A level of security clearance needed to access such information.
(figuratively) Pertaining to any especially sensitive closed-room activities.

Steve Jobs set up a top secret team to design the Macintosh.

Related Terms:	Material	Protected	Classification	Secret Material
	Security	Documents	Secret Secret	Secret Confidential
	Damage	Clearance	Confidential	Secret Secret Confidential
	Secret	Sensitive	Classified	Confidential Secret and Top Secret
	Level	Top Secret	Restricted	Secret Secret Confidential Restricted