top-secret
Eyes-only clearance level
Top-secret is the highest level of security classification, indicating information whose unauthorized disclosure could cause exceptionally grave damage to national security.
Documents, facilities, and operations receive this designation: top-secret clearance, top-secret files.
In casual use, top-secret often just means highly confidential: The recipe is top-secret.
Restricted from disclosure
- confidentialMeant to stay secret
- restrictedLimited in scope
- sensitiveEasily affected emotionally
- clearancePermitted passage or approval
redacted · need-to-know · compartmentalized · eyes-only · privileged · sealed · undisclosed · nonpublic
Beyond easy comprehension
- enigmaticPuzzling and obscure
- hush-hushHighly confidential matter
- cloak-and-daggerInvolving secret intrigue
- clandestineConcealed from authorities
shadowy · covert · furtive · whispered · forbidden · taboo · suppressed · concealed
Covert information gatherer
- agentOne who acts independently
- covertIntentionally concealed
- undercoverSecretly engaged in espionage
- moleSubterranean insectivore
handler · asset · tradecraft · dead-drop · infiltrate · exfiltrate · counterintelligence · reconnaissance
Kept out of sight
- disguisedConcealed true identity
- veiledConcealed or obscured
- encryptedTransformed into cipher
- cipherHidden writing system
coded · steganography · cryptic · camouflaged · obscured · buried · compartmented · anonymized
Secure storage chamber
- bunkerReinforced subterranean stronghold
- clearancePermitted passage or approval
- biometricsBody-based identity verification
- lockdownEnforced restriction on movement
perimeter · guard · screening · verification · firewall · shredder · alarm · surveillance
classified
Restricted from disclosure
- confidentialMeant to stay secret
- restrictedLimited in scope
- sensitiveEasily affected emotionally
clearance · redacted · need-to-know · compartmentalized · eyes-only · privileged · sealed · undisclosed · nonpublic · authorized
mysterious
Beyond easy comprehension
- enigmaticPuzzling and obscure
- hush-hushHighly confidential matter
- cloak-and-daggerInvolving secret intrigue
clandestine · shadowy · covert · furtive · whispered · forbidden · taboo · suppressed · concealed · guarded
spy
Covert information gatherer
- agentOne who acts independently
- covertIntentionally concealed
- undercoverSecretly engaged in espionage
mole · handler · asset · tradecraft · dead-drop · infiltrate · exfiltrate · counterintelligence · reconnaissance · intercept
hidden
Kept out of sight
cipher · coded · steganography · cryptic · camouflaged · obscured · buried · compartmented · anonymized · redaction
vault
Secure storage chamber
- bunkerReinforced subterranean stronghold
- clearancePermitted passage or approval
- biometricsBody-based identity verification
lockdown · perimeter · guard · screening · verification · firewall · shredder · alarm · surveillance · protocol
- Forbiddenforbidden, prohibited, banned, not allowed, off-limits
- secretsconfidential, classified, confidentiality, redacted, privacy
top-secretunclassified
Not assigned a category
public · declassified · open · unrestricted · transparent
secret, tops, secretly, secrecy, secretive, secrets, topmost, secretiveness, nonsecret