消(け)す

けす

verb (godan)

to turn off, to erase

1. to turn off, to switch off

To deactivate electrical devices like lights, TV, or air conditioning.

Please turn off the light.

テレビを消(け)しましょうか？

Shall I turn off the TV?

エアコンを消(け)しましたか。

Did you turn off the air conditioner?

Please put out the fire before going to bed.

Please turn off the light before leaving the room.

Please don't forget to turn off all the lights before going to bed.

2. to erase, to delete

To remove writing, data, or marks.

Please erase the writing on the blackboard.

I erase mistakes with an eraser.

May I delete this data?

Please don't erase what's written.

I accidentally deleted the photos.

TRANSITIVITY: 他動詞(たどうし) (transitive). Pair: 消(き)える (intransitive, to go out/disappear). Pattern: Xを消(け)す (turn off/erase X).

ASPECT: ている indicates resulting state. 消(け)している = 'have turned off' or 'is erasing.'

COMMON PATTERNS:

Opposite for devices: つける (to turn on). Pair: 消(き)える (to go out by itself).

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