| Subject | English | Japanese |
| comp. | n caps lock key | キャプスロックキー |
| comp. | n Caps Lock key | キャプスロック・キー |
| comp., MS | CAPS LOCK key | CapsLock キー (A toggle key that, when on, shifts the alphabetic characters on the keyboard to uppercase) |
| comp. | n caps lock key | キャプスロック・キー |
| comp. | n Caps Lock key | キャプスロックキー |
| comp., MS | Key lock | キーのロック (An option that locks the keypad to avoid accidental key presses) |
| railw., sec.sys. | key lock | 鍵鎖錠 |
| comp., MS | key range lock | キー範囲ロック (A lock that is used to lock ranges between records in a table to prevent phantom additions to, or deletions from, a set of records. Ensures serializable transactions) |
| gen. | n obsc lock and key | 関鍵 |
| comp., MS | SCROLL LOCK key | Scroll Lock キー (On the IBM PC/XT and AT and compatible keyboards, a key on the top row of the numeric keypad that controls the effect of the cursor control keys and sometimes prevents the screen from scrolling. On the enhanced and Macintosh keyboards, this key is to the right of the function keys on the top row. Many modern applications ignore the Scroll Lock setting) |
| construct. | ten-key lock | テンキーロック (ten-kī-rokku) |