There's been lots of news in the past couple of days about votes in the UK Parliament regarding Brexit. These reports seem to use the word "government" in a way that I don't understand. For instance, bbc.com writes:
Labour leader Jeremy Corbyn has now tabled a vote of no confidence in the government, which could trigger a general election.
Other reports I heard referred to the vote against Theresa May's Brexit deal as a failure for her government. Institute for Government writes:
The Government cannot now ratify the deal until Parliament has approved it
These uses seem to refer to the government as something separate from Parliament. But isn't Parliament a part of the government? I know the parliamentary system is not identical to our system in the US, but I was under the impression that Parliament was roughly equivalent to our Legislative branch, which is just one component of the government. And the Prime Minister is most closely analogous to our President.
This use of the word seems to correspond to the way we use "administration" in the US, to refer to the Executive branch, particularly that headed by a particular President (as in "the Trump administration"). But I've looked in a few dictionaries, and didn't find any with this specific definition. They give more general definitions that encompass all the people that control a country.
If "government" refers just to the executive branch, is there another, more encompassing term for the entire system that includes the Government, Parliament, and Courts in the UK (what we call the federal government)?
A number of comments have suggest that this really belongs in Politics Stack Exchange. I'm not asking about the differences between our political systems, I'm just wondering why the word "government" refers to the entire governing body in the US, while it just refers to one branch in the UK. This difference doesn't seem to be reflected in the dictionary definitions.