Question of the Day #440

"This is the very definition of an open-and-shut case. The facts, the law, and the Constitution have not changed since 2016..."
From the paragraph 9 of this article at Vice.com.

上記の文で、open-and-shutの意味は？
In the sentence above, what does "open-and-shut" mean?

答えは、コメントに書いてください。
Write your answer in the Comments.

明日、ここに答えを書きます。
I will add the answer and other remarks here tomorrow.

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解答

意味：
英辞郎によると、


〔謎・問題などが〕単純明快な、明々白々の

Answer

According to Merriam-Webster:

1. perfectly simple: OBVIOUS
2. easily settled

Etymology/語源

Merriam-Websterによると、

初めて使用されたのは、1841年。

According to Merriam-Webster:

First Known Use of open-and-shut:
1841

Examples

• an open-and-shut case of grand larceny
• Our lawyer thinks that we have an open-and-shut case.
• It's an open and shut case. The hospital is at fault.
• an open-and-shut case of murder.
• Her first assignment as a lawyer was an open-and-shut case involving a drunk driver.

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