switch

スイッチ

照明や機械の電源を入れたり切ったりするため、押すか動かす小さな装置。

やさしい英語で： A small control that you press or move to turn a light or machine on or off.

• The switch is beside the door.
• Press this switch to start the machine.
• I couldn’t find the light switch in the dark.

よく使う表現： light switch, power switch, press the switch, electric switch

切り替え、変更

ある物事や活動、状況から別のものに変わること。

やさしい英語で： A change from one thing, activity, or situation to another.

• The switch was surprisingly easy.
• She made the switch to a different bank.
• Their sudden switch from comedy to serious discussion surprised everyone.

使い方： a switch from something to something (The switch from gas to electricity saved us money.)

類義語： change, transition

よく使う表現： make the switch, sudden switch, switch to something

スイッチ、ネットワークスイッチ

コンピューター同士をつなぎ、ネットワーク内の正しい機器へ情報を送る装置。

やさしい英語で： A device that connects computers and sends information to the correct device on a network.

• Connect the cable to the switch.
• The office needs a switch with more ports.
• This switch sends each packet to the right computer.

類義語： network switch

よく使う表現： network switch, ethernet switch, switch ports

分岐器、ポイント

列車を二つの線路のどちらかへ導く、動かせる線路の部分。

やさしい英語で： A movable part of railway track that directs a train onto one of two tracks.

• The train passed over the switch.
• A broken switch delayed several trains.
• The worker moved the switch to direct the train onto another track.

類義語： points

よく使う表現： railroad switch, track switch, switch lever

小枝、むち棒

細くしなる棒。昔は人をたたいて罰するためにも使われた。

やさしい英語で： A thin, flexible stick, often used in the past to hit someone as punishment.

• He cut a switch from the tree.
• The old story describes children being punished with a switch.
• She carried a thin switch made from a willow branch.

類義語： stick, rod

よく使う表現： willow switch, thin switch, cut a switch

替える、切り替える

あるものを別のものに替えたり、別のものへ切り替えたりすること。

やさしい英語で： To replace something with something else or change from one thing to another.

• Let’s switch seats.
• He switched jobs last year.
• Could you switch this ticket for an earlier train?

使い方： switch from something to something (She switched from coffee to tea.); switch something for something (He switched his old phone for a newer model.)

類義語： change, exchange, swap

よく使う表現： switch channels, switch seats, switch jobs

つける、電源を入れる

スイッチを操作して照明をつけたり機械を動かしたりすること。

やさしい英語で： To make a light or machine start working by using its power control.

• Please switch on the light.
• She switched the radio on.
• Have you switched on the heater yet?

使い方： switch something on / switch on something (Switch the lamp on when it gets dark.)

類義語： turn on

反対語： switch off

よく使う表現： switch on, switch something on, switch on something

消す、電源を切る

スイッチを操作して照明を消したり機械を止めたりすること。

やさしい英語で： To make a light or machine stop working by using its power control.

• Switch off the light, please.
• I switched my computer off after work.
• Did you remember to switch off the oven?

使い方： switch something off / switch off something (Please switch the television off before you leave.)

類義語： turn off

反対語： switch on

よく使う表現： switch off, switch something off, switch off something