as secure as Fort Knox
- idiom
- Informal
:
tan seguro como Fort Knox
- He keeps his passwords as secure as Fort Knox, never sharing them with anyone.
Examples
-
The bank’s vault is as secure as Fort Knox, so clients trust it with their valuables.
-
With three locks and a security system, the apartment is as secure as Fort Knox.
-
This vault is as secure as Fort Knox.
-
Her password is as secure as Fort Knox!
-
The bank’s vault is as secure as Fort Knox, so clients trust it with their valuables.
-
With three locks and a security system, the apartment is as secure as Fort Knox.
-
He keeps his passwords as secure as Fort Knox, never sharing them with anyone.
Synonyms
318
3.2
Protected from danger or from people trying to break in
16
3.0
Kept in a locked place so people cannot take it
Very safe and protected from danger or theft
Made to stop burglars from breaking in and stealing things
Antonyms
How Secure
- Informal
19
7.3
318
3.2
∞
1.0
93
1.1
1
3.4
Surface Forms
Morphology
as + secure + as + fort + Knox
The simile pattern "as ... as ..." and the adjective "secure" are compositionally transparent, so the structure suggests a very high degree of security. However, the idiomatic force depends on cultural knowledge that Fort Knox is famously well‑protected; a B1 learner who only knows the literal words may not know this reference and thus cannot fully derive the intensified meaning.
Etymology
The phrase as secure as Fort Knox comes from the real place Fort Knox, where the government keeps a lot of gold and the site is well guarded. So saying something is as secure as Fort Knox means it is 'very safe' or 'protected' from theft.