keytrouble
nounUK /ˈkiːtrʌbəl/
US /ˈkiːtrʌbəl/
A problem with a key, like when it gets stuck or lost.
I had keytrouble this morning and couldn't open my front door.
OTHER MEANINGS
2. A difficulty caused by pressing the wrong key on a keyboard or piano.
His keytrouble made the song sound strange.
3. A mix-up involving several keys, such as confusing one key for another.
The janitor's keytrouble left him trying five keys on the wrong door.
4. A small fault in a key itself, like a bent or worn key.
The old keytrouble meant it no longer turned smoothly.