Switch

スイッチ

suitchi

(device to turn electric current on and off)

分岐器

bunkiki

(movable section of railroad track)

開閉器

kaiheiki

(device to turn electric current on and off)

電源

dengen

(device to turn electric current on and off)

交換する

kōkan suru

(to exchange)

切り替える

kirikaeru

(to change (something) to the specified state using a switch)

切り替える

tirikaeru

(to change places or tasks)

取り換える

torikaeru

(to exchange)