Sure, but my main intent was to raise the question as to why it was singled out in the article/blog post as something that needs to be in the dictionary.

As you've pointed out, the word "bills" clarifies what it is. I don't see why every combination needs to be in a dictionary. The list would be incredibly long, eg. "phone bills" or "power bills", etc.

In most English speaking countries it's a far from common phrase (ie. it's very USA-centric).

“Hospital bills”. That’s very country specific. Also, that’s two words.

Good point. TIL :)

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