English Expression · Intermediate
Fort Knox
A place which is very difficult to get into
Pronunciation: say Fort Knox
Meaning
A place which is very difficult to get into.
Example
After the security upgrades, the facility was essentially Fort Knox.
After the security upgrades, the facility was essentially Fort Knox.
Practice tips
- Practice Fort Knox out loud — read the pronunciation guide above and repeat.
- Use it in your own sentence today; reuse beats rereading.
- Pay attention to context: this English expression is for intermediate-level learners.