Usage of 消す (けす)
The verb 消す is a common and versatile word used primarily to mean "to turn off," "to erase," or "to delete." It is often used when talking about turning off lights, electronics, or other devices by cutting their power. It also applies to erasing written characters or deleting digital files.
Common Contexts
- Turning off electrical appliances: 電気を消す (turn off the light), テレビを消す (turn off the TV).
- Erasing writing or marks: 黒板の字を消す (erase the writing on the blackboard).
- Deleting digital data: ファイルを消す (delete a file).
Collocations and Patterns
- 電気を消す: to turn off the electricity or light.
- 火を消す: to put out a fire.
- 記憶を消す: to erase memories (figurative).
- 消してほしい: a request form meaning "please turn off/erase/delete."
Nuances and Tips
消す is a transitive verb, so it always requires a direct object (something that is being turned off, erased, or deleted). Be careful not to confuse it with 消える (きえる), which is intransitive and means "to disappear" or "to go off" by itself.
In polite requests, use ～てください form, e.g., 電気を消してください.
This verb is very common in everyday conversation and essential for basic communication about controlling devices or correcting mistakes.