If you want to describe a device that is damaged and can no longer function, the common English word is " dead ": My phone suddenly went dead while I was talking to my manager.

" Broken " has the same meaning, but also refers to things that are broken: Sorry, do you have the time? My watch is broken.

" Break down " is often used to refer to a car or machine, especially a large or complicated one, stopping working: My father's car broke down on the way back home. We had to call our uncle for help.

When a computer or computer system stops working because of a problem, also known as "hanging", we use the word " crash ": Oh no, my laptop's crashed again! How am I going to finish my homework on time now?

If an electrical appliance or machine in a public place is broken, you can say that it is " out of order ": I'm afraid we have to use the stairs. The elevator is out of order today.

In addition to the familiar meaning of failing an exam, " fail " is also used when we talk about parts of a machine or body that are not performing their functions properly: Years of hard work has made his heart and kidneys fail.

" On the blink " is a colloquial way of saying something is temporarily broken or works sometimes and doesn't: Dad, the TV is on the blink again.

When parts of something fall apart or break into pieces because they are in poor condition, we can use the phrase " fall apart ": I can't believe I've only had these boots for half a year and they're already falling apart.

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