Caps Lock ⇪ Caps Lock is a button on a computer keyboard that causes all letters of bicameral scripts to be generated in capital letters. It is a toggle key: each press reverses the previous action.

When activated, the Caps Lock key capitalizes every letter you type until you turn it off. Nowadays, hardly anyone uses this option anymore.

Sometimes abbreviated as CAPS and CAPSLK, Caps Lock is a toggle key on a computer keyboard, that when pressed, causes all letters typed to be in uppercase.

Caps lock is a lock key found on most keyboards. Its purpose is to allow easy entry of capitalised letters; even in countries such as Japan where letter case does not exist, it is present for when the keyboard is used for text entry in European languages, primarily English.