Power goes OUT or goes OFF?

both.

the power goes off every day at noon.

the power went out at noon.

yesterday we had a power outage.

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the site uses Gravatar for it's avatars.

go to https://en.gravatar.com/ and create an account...

Thank you

You generally say the power it "out" when it's completely unavailable, as when there're power lines down due to a storm, for example.

Otherwise, when it's a voluntary matter, you say the power is off, or that you have turned the power off (not out).

In Britain power generally is/goes "off", whether because of a "power cut", or because it was turned off. Out and outage are Americanisms, although you may hear data centre people using the latter.

Am I correct in saying that "power failure", "power cut" and "power outage" have the same meaning?

And in what circumstances do you use the term "blackout"?

Thank you

1. Yes
2. In the same circumstances as the previous three.

I've never heard "power cut" used. In general a "blackout" is a very extensive loss of power, as opposed to an isolated case confined to a few city blocks. If you hear about a "blackout" in a town, that generally means that (at least most of) the entire town is without power.

From a grammatical viewpoint, is it correct to define "power failure", "power outage" and "power cut" as compounds or compound nouns or is it a "noun + noun" combination?

Thanks again for your kind help.

You've clearly never been to Britain or any other British English speaking country.

I'd say compound nouns, like cat food, rain forest, or snow shower.

Can a compound noun be made up of three or more nouns in succession?

If so, would you please give me some examples?

Thank you.

I presume they don't have Google on your planet?

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What did you google to get the above list?

Three word compound noun.

If I google "Three word compound noun", I don't get the above list.

Would you please give me the link?

Thank you

Examine the search results. Use your eyes.

Here is the link I get:

https://www.google.it/search?q=%22Three+word+compound+noun%22&newwindow=1&ei=bh08WqK9MoLzUIHkoogO&start=10&sa=N&biw=1536&bih=779

Do you have the same? I don't think so because I have https://www.google.it whilst I presume you have https://www.google.uk