# switch

/ˈswɪtʃ/ (US) · /swˈɪtʃ/ (UK)

Source: https://englishreference.com/word/switch
Updated: 2026-07-22

## Senses

### 1. electrical device

noun · CEFR A2

a small button or lever that you move to turn a light or machine on or off.

For teachers: a device for making and breaking the connection in an electric circuit.

- He flipped the light switch as soon as he walked into the dark room.
- The technician replaced the faulty wall switch to ensure the overhead lighting operated reliably during the presentation.

### 2. a change or swap

noun · CEFR B1

a change from one thing to another, or an exchange of positions.

For teachers: an act of changing or swapping one thing for another, often involving a complete substitution.

- The sudden switch in the weather caught the hikers without their rain coats.
- The company's strategic switch from hardware to software services proved to be a turning point for its annual revenue.

### 3. computing/networking

noun · CEFR B2 · Technical

a device that connects computers in a network; also a command in programming.

For teachers: a high-speed networking device that forwards data only to the specific destination port; also a programming construct for multi-way branching.

- We need a new network switch to connect all the office computers to the internet.
- The developer implemented a switch statement to handle the various user input cases more efficiently than a long chain of conditional blocks.

### 4. railway track

noun · CEFR C1 · American English

a section of tracks that can move to send a train onto a different line.

For teachers: a mechanism consisting of a pair of linked tapering rails that allows trains to be guided from one track to another.

- The train slowed down as it passed over the switch to enter the station.
- The signalman manually operated the switch to divert the freight train onto the siding, allowing the express service to pass.

### 5. to swap or change

verb · CEFR A2

to change from one thing to another, or to trade places with someone.

For teachers: to change or substitute one item, person, or state for another. Often used with 'over' or 'to'.

- Can we switch seats so I can sit next to the window?
- Many consumers decided to switch to renewable energy providers following the recent increase in fossil fuel prices.

### 6. to operate a control

verb · CEFR A2

to turn something on or off using a button or lever.

For teachers: to change the state of an appliance or circuit by operating a switch. Usually followed by 'on' or 'off'.

- Remember to switch off the computer before you leave the office.
- The automated system is programmed to switch on the external security lights at dusk and deactivate them at dawn.

### 7. backwards stance

adjective · CEFR C1 · Technical

riding a board or skis in the opposite direction of your normal style.

For teachers: referring to a stance or movement performed in the opposite direction to one's natural orientation.

- The snowboarder landed a switch trick perfectly during the competition.
- Mastering the switch landing is essential for professional freestyle skiers who wish to compete at the highest international levels.

## Examples

- Please flip the switch to turn on the light.
- The company made a sudden switch to a new software system last month.
- The network switch manages data traffic between the servers, ensuring that information reaches the correct destination without causing congestion on the local network.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.