confidentialkey

noun
UK /ˌkɒnfɪˈdenʃəl kiː/
US /ˌkɑːnfɪˈdenʃəl kiː/

A secret key that keeps information safe and private.

The guard used a confidentialkey to open the locked box.


OTHER MEANINGS

2. A special code that only certain people are allowed to use.

Only the manager knows the confidentialkey for the office computer.

3. A key that protects a secret message so others cannot read it.

She typed the confidentialkey to unlock the hidden message.

4. A private way to get into a place or system that is kept hidden.

The spy carried a confidentialkey to enter the building.