[aninhumer]

> for example Blitzkrieg (commonly the "blitz"); now this does not simply mean "lightning war", it very much references a particular part of a particular war.

It's not just commonly "The Blitz", that's the only term used to describe that specific period of bombing.

If people use the word "Blitzkreig" in English, they're talking about the military strategy (usually only used in the context of WW2, but still).

In fact, The Blitz isn't really even an example of what would be referred to as Blitzkreig.