Fort knox Meaning in English
expression
Definition
'Fort Knox' refers to a famous, extremely secure U.S. military facility that stores gold, and is used to describe anything that is very well protected or hard to access.
Usage & Nuances
Figurative and informal; often used to exaggerate security or difficulty of access ("My brother's room is like Fort Knox"). The real Fort Knox is famous for its security, but most uses are humorous or metaphorical.
Example Sentences
The museum is like Fort Knox — you can't get in without permission.
basic
His safe is protected like Fort Knox.
basic
Getting into this app is harder than Fort Knox.
basic
My brother keeps his snacks locked away like they're in Fort Knox.
natural
Getting past her security system is basically breaking into Fort Knox.
natural
You treat your diary like it's Fort Knox — I can't even look at the cover!
natural