Translation guide
An electronic lock is a locking device that operates by means of electric current. In Japanese, the most common term is 電子錠, but other expressions exist depending on context, such as smart locks or keyless entry systems.
electronic lock
The learner wants to refer to a lock that uses electricity, typically on doors or safes, without specifying the mechanism.
Standard term for an electronic lock. Used for door locks, lockers, etc.
This door has an electronic lock.
Also means electronic lock, but 電子錠 is more common. Sometimes used interchangeably.
We installed an electronic lock system.
The learner is talking about a modern lock that can be controlled via smartphone, keypad, or biometrics, often part of a smart home.
Common loanword for a smart lock. Used for residential and commercial smart locks.
You can control the smart lock with your smartphone.
Often refers to the key fob or the system itself, especially for cars, but also used for door locks.
This car can be locked with a smart key.
The learner wants to describe a system where you don't need a physical key to unlock, often using a remote or proximity sensor.
Standard term for keyless entry systems, especially for cars.
I unlock the door with keyless entry.
Refers to the remote control key itself, often used for cars.
Unlock with the remote key.
The learner is referring to a lock with a numeric keypad or touchscreen, common on apartment doors or safes.
電子錠 (denshi-jō) is the more common and modern term. 電気錠 (denki-jō) is also used but can sound slightly older or more industrial. In most cases, 電子錠 is preferred.
Many terms for electronic locks are loanwords from English (スマートロック, キーレスエントリー). These are widely understood, especially in consumer contexts. However, in formal or technical writing, 電子錠 may be more appropriate.