The phrasal verb 'switch off' is predominantly used in informal contexts, though it can appear in formal speech, especially in the context of manufacturing or technology discussions. Generally, 'switch off' is used to describe the act of turning off a device or machine by operating its switch, such as "I switched off the lights before leaving," which is a fairly literal usage. It is also used metaphorically to express a mental disengagement or lack of attention, for example, "I tend to switch off during long meetings." This phrasal verb replaces other more formal verbs like 'deactivate' or 'disengage.' 'Switch off' is versatile and commonly found in everyday conversation due to its practicality and ease of understanding, often appearing in instructions, casual dialogue, and scenarios where technology is involved.
A2
Beginner
1. To turn off a device, machine, or light by operating a control such as a button or switch.
Please switch off the lights before you leave the room.
I switched off the computer after finishing my work.
2. To stop paying attention or lose interest.
She switched off during the meeting because it was so boring.
When he starts talking about politics, I just switch off.